Home

Primary infection disease examples

The Pathogens That Cause a Primary Infectio

Strep throat and botulism are examples of bacterial infections. Parasites: These enter a host body and drain energy from the host. Tapeworm, which wreaks havoc on the digestive system, and Lyme-carrying are two examples of parasites that can make people sick. Primary Infection and STI Infectious diseases are diseases caused by microorganisms. These are microscopic organisms, such as bacteria, viruses, fungi, or parasites. They can sometimes be caught from other people, the environment, from animal contact, or from insect bites. fever, diarrhea, fatigue, and muscle aches. They can.

Common Infectious Diseases University of Utah Healt

Causes. Infectious diseases can be caused by: Bacteria. These one-cell organisms are responsible for illnesses such as strep throat, urinary tract infections and tuberculosis. Viruses. Even smaller than bacteria, viruses cause a multitude of diseases ranging from the common cold to AIDS. Fungi Signs and symptoms of primary immunodeficiency disease include severe or recurrent infections such as pneumonia, sinus infections, abscesses, ear infections, or skin infections Infectious diseases can be caused by many pathogens, including bacteria, viruses, fungi, and parasites that may cause illness and disease. For humans, transmission of pathogens may occur in a variety of ways: spread from person-to-person by direct contact, water or foodborne illness or aerosolization of infected particles in the environment and. Diseases caused by persistent virus infections include acquired immune deficiency syndrome (AIDS), AIDS-related complexes, chronic hepatitis, subacute sclerosing panencephalitis (chronic measles encephalitis), chronic papovavirus encephalitis (progressive multifocal leukoencephalopathy), spongioform encephalopathies (caused by prions), several herpesvirus-induced diseases, and some neoplasias 1. Primary Prevention—intervening before health effects occur, through measures such as vaccinations, altering risky behaviors (poor eating habits, tobacco use), and banning substances known to be associated with a disease or health condition.8,9 2. Secondary Prevention—screening to identify diseases in the earlies

Fungal diseases are often caused by fungi that are common in the environment. Fungi live outdoors in soil and on plants and trees as well as on many indoor surfaces and on human skin. Most fungi are not dangerous, but some types can be harmful to health Primary prevention. Primary prevention aims to prevent disease or injury before it ever occurs. This is done by preventing exposures to hazards that cause disease or injury, altering unhealthy or unsafe behaviours that can lead to disease or injury, and increasing resistance to disease or injury should exposure occur. Examples include These are called airborne diseases. Airborne disease can spread when people with certain infections cough, sneeze, or talk, spewing nasal and throat secretions into the air. Some viruses or.. The flu is a common infectious disease infecting more than 40 million people each year. Then, there are the epidemics and pandemics like Ebola and coronavirus that pop up. So, what is an infectious disease? Infectious diseases are a class of diseases and their symptoms, like fever and cough, caused by tiny organisms An overview of primary immunodeficiency disease symptoms, diagnosis, treatment and management written by leading experts in allergy, asthma and immunology. Cookie Notice. This site uses cookies. By continuing to browse this site, you are agreeing to our use of cookies

¾ Provide examples of primary, secondary, and tertiary prevention activities related to information on patterns of infection and disease can assist in identifying people or groups of people at risk for TB, understanding how the disease is transmitted, prioritizing cases, and mortality and morbidity of a disease: primary, secondary, and. An example of a primary pathogen is enterohemorrhagic E. coli (EHEC), which produces a virulence factor known as Shiga toxin. This toxin inhibits protein synthesis, leading to severe and bloody diarrhea, inflammation, and renal failure, even in patients with healthy immune systems

An immune deficiency disease occurs when the immune system is not working properly. If you are born with a deficiency or if there is a genetic cause, it is called primary immunodeficiency disease. Symptomatic of autoimmune diseases or autoimmune activity, but not a disease or a cause of disease. Primary immunodeficiency: Comorbidity, N: 279.8: The condition is inherited, but it is associated with several autoimmune diseases. Pyoderma gangrenosum: Comorbidity, Y: Possibly symptomatic of autoimmune diseases, but not a disease or a cause of. Infectious diseases can be caused by several different classes of pathogenic organisms (commonly called germs). These are viruses, bacteria, protozoa, and fungi.Almost all of these organisms are microscopic in size and are often referred to as microbes or microorganisms.. Although microbes can be agents of infection, most microbes do not cause disease in humans

An increased susceptibility to infection is the hallmark of the primary immunodeficiency diseases. In most patients, the striking clinical feature is the chronic or recurring nature of the infections rather than the fact that individual infections are unusually severe. It is difficult to assign a precise frequency of infections tha Viruses That Cause Infectious Diseases in Humans. An infectious disease can be spread directly or indirectly from person to person. Most people are more familiar with the disease name rather than the virus name. You've probably heard about most of these common viruses and the diseases they cause:. Virus: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2 Signs and symptoms of primary immunodeficiency can include: Frequent and recurrent pneumonia, bronchitis, sinus infections, ear infections, meningitis or skin infections Inflammation and infection of internal organs Blood disorders, such as low platelet counts or anemi

A disease is any condition in which the normal structure or functions of the body are damaged or impaired. Physical injuries or disabilities are not classified as disease, but there can be several causes for disease, including infection by a pathogen, genetics (as in many cancers or deficiencies), noninfectious environmental causes, or inappropriate immune responses Primary prevention includes those measures that prevent the onset of illness before the disease process begins. Immunization against infectious disease is a good example. Secondary prevention includes those measures that lead to early diagnosis and prompt treatment of a disease. Breast self-examination is a good example of secondary prevention Infectious diseases can be classified on the basis of the causative pathogen. The main types are enlisted and described below. Viral Infection. Viruses are the primary cause of viral infections like the common cold, influenza, and so on A secondary infection is an infection that occurs during or after treatment for another infection. It may be caused by the first treatment or by changes in the immune system. Two examples of a secondary infection are: A vaginal yeast infection after taking antibiotics to treat an infection caused by bacteria True or primary pathogens can cause disease in any individual, regardless of their health status. Examples of these include Histoplasma capsulatum, Blastomyces dermatitidis, Coccidioides immitis and Paracoccidioides brasiliensis, which cause disease in areas of endemicity. Opportunistic fungal pathogens are not sufficiently pathogenic to cause.

Infectious diseases - Symptoms and causes - Mayo Clini

  1. ently.
  2. ed. • Usually diseases of infancy & childhood. 7
  3. Infectious Diseases - A to Z List. Chikungunya Virus Infection (Chikungunya) CDC. Clostridium Difficile Infection CDC. Coccidioidomycosis fungal infection (Valley fever) CDC. Creutzfeldt-Jacob Disease, transmissible spongiform encephalopathy (CJD) CDC. Encephalitis, Arboviral or parainfectious CDC
  4. For example, not all workers in the same healthcare facility, not all individuals with the same job title, and not all healthcare facilities will be at equal risk of occupational exposure to infectious agents. The primary routes of infectious disease transmission in U.S. healthcare settings are contact, droplet, and airborne
  5. Zoonotic diseases (also known as zoonoses) are caused by germs that spread between animals and people. Animals provide many benefits to people. Many people interact with animals in their daily lives, both at home and away from home. Animals provide food, fiber, livelihoods, travel, sport, companionship, and education for people across the globe
  6. g in contact.
A Guide To Eye Diseases in Canines

Infectious diseases include zoonotic and vector-borne diseases. A zoonosis is any disease or infection that is transmissible from animals to humans. Zoonoses may be caused by viruses, bacteria, or parasitic animals (such as protozoa (i.e. single celled-organisms), helminths and arthropods). Over 60% of known human infectious diseases Prion diseases comprise several conditions. A prion is a type of protein that can trigger normal proteins in the brain to fold abnormally. Prion diseases can affect both humans and animals and are sometimes transmitted to humans by infected meat products. The most common form of prion disease that affects humans is Creutzfeldt-Jakob disease (CJD) Infectious disease control in the workplace examples include administering first aid, sharing needles, unprotected sexual contact, blood transfusions (rarely), housekeeping/laundry, or rendering first aid as a primary job assignment). Employees have the option to decline the vaccination series. If they do decline, there is a requirement. Infectious diseases are diseases caused by living organisms like viruses and bacteria. Described as contagious, they can be passed from person to person through body secretions, insects or other means. Examples are SARS, influenza, the common cold, tuberculosis (TB), Hepatitis A and B. Diseases spread from animals to humans, such as avian. The infection of the uterus, fallopian tubes, or ovaries that occurs when bacteria from the vagina spread into the uterus and fallopian tubes is known as _____ inflammatory disease. Pelvic Strains of human papillomavirus that are associated with cervical _____________ are called high-risk strains and include HPV-16 and HPV-1

Primary immune deficiency diseases (PIDDs) are rare, genetic disorders that impair the immune system. Without a functional immune response, people with PIDDs may be subject to chronic, debilitating infections, such as Epstein-Barr virus (EBV), which can increase the risk of developing cancer. Some PIDDs can be fatal. PIDDs may be diagnosed in infancy, childhood, or adulthood, depending on. Genital herpes: the epidemiology and control of a common sexually transmitted disease. Though the primary infection heals completely, rarely leaving a scar, the virus that caused it remains in the body. Herpes simplex. Since primary infections are more likely than non-primary infections to cause symptoms at birth and long-term disability. The Pediatric Infectious Diseases Society has launched The Comprehensive Vaccine Education Program to help combat vaccine misinformation and hesitancy. SPONSORED CONTENT. June 30, 2021. 2 min read. In these settings, patients suffering from primary disease are often afflicted with compromised immunity and are more susceptible to secondary infection and opportunistic pathogens. In 2011, more than 720,000 HAIs occurred in hospitals in the United States, according to the CDC airborne infection isolation to them beyond non-medical transport in the course of referral. Examples are primary care clinics; many skilled nursing facilities; and jails that do not provide ongoing treatment, housing, or other services to AirID cases or suspected cases. Referring employers must comply with subsectio

Primary Immunodeficiency Disease (PIDD): Symptoms & Treatmen

  1. This video is a brief overview of Infectious Diseases. We will take a look at what they are, some terms used to describe characteristics of infectious diseas..
  2. The purpose of this infectious disease outbreakplan is to outline the essential steps primary care facilities should take to care for infected patients and provide continuity of services to non-infected patients. It is intended to provide a broad view of infectious disease outbreak plannin
  3. Primary biliary cholangitis (PBC) is a chronic, progressive liver disease in which the bile ducts become inflamed and damaged. This leads to the buildup of bile and causes liver problems such as scarring, cirrhosis (scarring and poor liver function), and eventual liver failure. PBC is more common in women. Many people do not have symptoms when they are first diagnosed and may not develop.
  4. An infectious disease is any disease caused by a pathogen (germ) such as a virus, bacteria, parasite, or fungus. Although we will mostly discuss infectious diseases in people on this page, other living organisms such as animals, plants, and microorganisms can all be made ill by an infectious disease. Pathogen is the scientific name for germ
  5. Most people with the disease live for 3 to 5 years after their symptoms start, yet some people can live for 10 years or longer. Primary Lateral Sclerosis (PLS) PLS is similar to ALS, but it.

Infectious Diseases: Symptoms, Causes, Treatment

Primary prevention continues to evolve and with greater availability of long-term data comes improved understanding of the means by which we can reduce CVD risk. It is an endeavour that must be continued if we are to reduce the burden of a preventable disease For example, diabetic nephropathy is a form of glomerular disease that can be placed in two categories: systemic diseases, since diabetes itself is a systemic disease, and sclerotic diseases, because the specific damage done to the kidneys is associated with scarring The World Health Organization warned in its 2007 report that infectious diseases are emerging at a rate that has not been seen before. Since the 1970s, about 40 infectious diseases have been discovered, including SARS, MERS, Ebola, chikungunya, avian flu, swine flu, Zika and most recently COVID-19, caused by a new coronavirus, SARS-CoV-2. With people traveling much more frequently and far.

Infectious diseases are the diseases caused by various pathogenic microorganisms such as virus, bacteria, protozoan, fungi, and other parasites. These infectious diseases can be transmitted by animals, humans, insects or other agents. Infectious agents are present all around us, and they come in different shapes and sizes Hypothyroidism and diabetes are both examples of conditions with subclinical and clinical disease states. In the subclinical state they will have either no symptoms or only minor symptoms. UpToDate, electronic clinical resource tool for physicians and patients that provides information on Adult Primary Care and Internal Medicine, Allergy and Immunology, Cardiovascular Medicine, Emergency Medicine, Endocrinology and Diabetes, Family Medicine, Gastroenterology and Hepatology, Hematology, Infectious Diseases, Nephrology and Hypertension, Neurology, Obstetrics, Gynecology, and Women. SARS-CoV-2 reinfection was uncommon and milder than primary infection but was associated with two deaths, according to findings from a U.S. study published in Clinical Infectious Diseases. &ldquo. Infections and infectious diseases are a great burden on many societies, including the countries in the WHO European region. To reduce that burden an integrated approach is required, combining health promotion, disease prevention and patient treatment. The prerequisite for success in this fight is the participation of all health care professionals

Persistent Viral Infections - Medical Microbiology - NCBI

  1. A disease is a significant disturbance in health due to microbial infection. Most of these diseases tend to spread from one person to another, from one region to another. These are transmitted by mediators or vectors like insects, animals, air, water, soil, and human activities like sneezing, kiss, sex, etc
  2. Some diseases do not need direct contact to spread. Some microbes can infect hosts by traveling through the air and entering the airways. In this MNT Knowledge Center article, learn about the most.
  3. Primary prevention is less expensive, safe and more effective way of preventing diseases in comparison to secondary and tertiary preventive techniques. Nature has provided some defence mechanisms in our body which will prevent the entry of disease producing micro­organisms in the body or destroy them
  4. d is Hodgkin's disease -- a type of cancer associated with enlarged lymph nodes -- because I had Hodgkin's years ago. Hodgkin's disease was named after Thomas Hodgkin, an English physician and pathologist who described the disease in a paper in 1832. Less frequently, diseases are named after a famous patient
  5. ate the infection in this country. Somewhere in the middle of this spectrum are chlamydia and gonorrhea
  6. secondary infection: any infection that arises subsequent to a pre-existing infection; but especially a nosocomial infection. Immunodeficiency (or immune deficiency) is a state in which the immune system's ability to fight infectious disease is compromised or entirely absent. Immunodeficiency may also decrease cancer immunosurveillance

Types of Fungal Diseases Fungal Diseases CD

Infectious disease - Infectious disease - Polio vaccine: The value of primary prevention of disease through active immunization programs has been most convincingly demonstrated in the case of poliomyelitis. Before the vaccine was known, more than 20,000 cases of paralytic disease occurred in the United States alone every year. With use of the vaccine after 1961, the last case of transmission. For example, all other autoimmune diseases occur in both children and adults, while, as already mentioned, PBC has never been diagnosed in childhood. PBC and other autoimmune diseases, however, are associated with antibodies (small proteins found in the blood and bodily secretions) that react with the body's own proteins, which are referred to. 'Notification of infectious diseases' is the term used to refer to the statutory duties for reporting notifiable diseases in the Public Health (Control of Disease) Act 1984 and the Health. Department of Health and Human Services Communicable Disease Prevention and Control telephone: 1300 651 160 (24 hours) infectious.diseases@dhhs.vic.gov.au (regularly monitored). Exclusion of a child with an infectious disease — Primary school students. Children with certain infectious diseases, and children who have been in contact with.

Pathology I: Basics - Cardiology 1 with Hassid at

Primary, secondary and tertiary preventio

  1. Communicable Disease Guidance for Schools . Overview Communicable disease prevention is of paramount importance to decrease school absenteeism, and to maintain the health of the school population. Efforts in school settings can promote health and prevent disease among students, staff, and surrounding communities
  2. Infection and malnutrition have always been intricately linked. Malnutrition is the primary cause of immunodeficiency worldwide, and we are learning more and more about the pathogenesis of this interaction. Five infectious diseases account for more than one-half of all deaths in children aged <5 years, most of whom are undernourished
  3. g Webinar. Primary Care: Pediatric Infectious Disease. Mon Aug 16, 2021 - Fri Aug 20, 2021. Sarasota Florida. Embassy Suites by Hilton Sarasota (Click Here for Room Block Booking) Upco
  4. A collection of disease information resources and questions answered by our Genetic and Rare Diseases Information Specialists for T cell immunodeficiency primary. PubMed is a searchable database of medical literature and lists journal articles that discuss T cell immunodeficiency primary. Click on the link to view a sample search on this topic

NEURODEGENERATION SPECIAL SECTION Genetic Classification of Primary Neurodegenerative Disease John Hardy* and Katrina Gwinn-Hardy REVIEW neurodegenerative diseases as processes that start with certain biochemical changes, which in turn lead to others, ultimately During the past 10 years (the decade of the brain), some of resulting in a clinically and pathologically recognizable phenotype infection. For instance, the spread of diarrheal disease may readily occur with children in diapers and others with special needs due to inadequate handwashing, environmental sanitation practices, and diaper changing. This manual contains 54 disease fact sheets for providers about specific infectious disease problems The World Health Organization warned in its 2007 report that infectious diseases are emerging at a rate that has not been seen before. Since the 1970s, about 40 infectious diseases have been discovered, including SARS, MERS, Ebola, chikungunya, avian flu, swine flu, Zika and most recently COVID-19, caused by a new coronavirus, SARS-CoV-2. With people traveling much more frequently and far. Many children and adults carry infectious disease without having symptoms; most who develop symptoms are contagious before they experience a symptom. For many of the common illnesses, exclusion of people with symptoms does not control the spread of the infection to others in the group. 4. In addition, people have differen

Airborne Diseases: Types, Prevention, and Mor

10 Primary Causes of Disease and Dysfunction. Posted by Dr. Ben Kim on Dec 23, 2014. Examples of repetitive stress injury include back and shoulder pain from wearing a backpack over only one shoulder, a strained neck from talking too long on the phone while leaning to one side, and carpal tunnel syndrome from typing too long with our wrists. Enteric diseases. There are many bacterial diseases that are transmitted by some form of fecal contamination of food or water, either directly or indirectly. House flies are a primary agent in transmitting these diseases, and do so mechanically. Typhoid Fever (Salmonella typhi) is a well-known enteric disease, and affects humans worldwide. Genital herpes: the epidemiology and control of a common sexually transmitted disease. Though the primary infection heals completely, rarely leaving a scar, the virus that caused it remains in the body. Herpes simplex. Since primary infections are more likely than non-primary infections to cause symptoms at birth and long-term disability. There are more than 100 autoimmune diseases, including conditions such as celiac disease, type 1 diabetes, and psoriasis. These occur when the immune system mistakenly attacks parts of the human body Genetic diseases and disorders are caused by a change in the DNA sequence. There are 4 types of genetic diseases. 1. Single-gene inheritance, 2. Multifactorial inheritance disorder, 3. Damage to the chromosomes; and 4. Mitochondrial genetic inheritance disorders. Examples of genetic diseases or disorders include Huntington's disease, PCOS, and Down and Turner syndrome

Goal. Increase immunization rates and reduce preventable infectious diseases. Overview. The increase in life expectancy during the 20th century is largely due to improvements in child survival; this increase is associated with reductions in infectious disease mortality, due largely to immunization.1 However, infectious diseases remain a major cause of illness, disability, and death Emerging infectious diseases can be defined as infections that have newly appeared in a population or have existed but are rapidly increasing in incidence or geographic range. Among recent examples are HIV/AIDS, hantavirus pulmonary syndrome, Lyme disease, and hemolytic uremic syndrome (a foodborne infection Chronic diseases - such as heart disease, cancer, diabetes, stroke, and arthritis - are the leading causes of disability and death in New York State and throughout the United States. More than 40% of New York adults suffer from a chronic disease, and chronic diseases are responsible for 23% of all hospitalizations in New York State

Rusts of cereal crops and spinach constitute an example of this type disease dissemination. Roguing (removal) of diseased plants as they appear is often an effective method in helping reduce the spread of a destructive disease. Virus diseases of stone fruits and bacterial wilt of cucurbits are examples where roguing is worthy of consideration Examples include tuberculosis, lung cancer, acquired immunodeficiency syndrome (AIDS), pneumonia, occupational lung disease, and smoking. Sleep Health is now a separate topic area of Healthy People 2020. Why Are Respiratory Diseases Important? Currently more than 25 million people 6, 7 in the United States have asthma Severe Acute Respiratory Syndrome (SARS) is such an example of an emerging infectious disease, where a severe variant of Corona virus spread across continents within a matter of weeks. Mad cow disease, a variant of Creutzfeldt-Jakob Disease, is another rare, but widely publicized, infection caused by prions Primary mitochondrial diseases are metabolic diseases that affect the cells' ability to convert energy. The disorders can manifest differently depending on the organs affected. They have historically been viewed as clinical syndromes and more recently as disease spectra, caused by genetic defects affecting mitochondrial function The motor neuron diseases (MNDs) are a group of progressive neurological disorders that destroy motor neurons, the cells that control skeletal muscle activity such as walking, breathing, speaking, and swallowing. This group includes diseases such as amyotrophic lateral sclerosis, progressive bulbar palsy, primary lateral sclerosis, progressive.

Guidelines for Prevention and Treatment of Opportunistic

Examples include gliomas, meningiomas, medulloblastomas, and brain metastases, which are more common than tumors arising in the brain (primary brain tumors) and come from cancers elsewhere in the body, including the lungs, breasts, and gastrointestinal tract (For more information on a specific kind of brain tumor, choose the name of the tumor. Although the burden of infectious diseases in Australia is relatively small (2.0% of total burden) (AIHW 2019), most people will experience an infection from a communicable disease during their lifetime—for example, a common cold or a stomach bug. Many infectious diseases have the potential to cause significant illness and outbreaks This is a list of common, well-known or infamous diseases.This is neither complete nor authoritative. This is not intended to be a list of rare diseases, nor is it a list of mental disorders.. This list includes both common names and technical names for diseases. This is deliberate; where multiple names are in common use for the same disease, all of those names should link to the main article.

2.1. University Responsibilities for Infectious Disease Emergencies The University is responsible for protecting life and property from the effects of an infectious disease emergency on campus. The University has the primary responsibility for the management of an infectious disease emergency that occurs on campus or impacts campus Heart Disease is really a very wide group of diseases that affect the circulatory system or heart. Causes of Non-communicable Diseases. The primary causes are characterized by either environmental or genetic factors. 5 Common Examples of Non-infectious Diseases in India The progression of symptoms is one of the most important characteristics associated with problems caused by biotic agents. Diseases can result in primary and secondary symptoms. For example, decayed roots on a tree may be a primary symptom while the toppling over of the tree or windthrow is a secondary symptom

What Is an Infectious Disease? Examples of Basic Type

Acute infections The white blood cell count rises in cases of infection, steroid use and other conditions. The immune system responds to cues in the microenvironment to make acute and chronic adaptations in response to inflammation and injury. The therapeutic significance of adenosine-mediated effects on the immune system is discussed here Heart Disease in Women Appreciate sex-related differences in symptoms of ischemia between men and women; Review non-traditional risk factors for CAD impacting women that deserve special attention; Discuss strategies to raise awareness and close the gaps to optimize treatment of heart disease in men and wome Primary cilia are microtubule-based organelles found in most mammalian cell types. Cilia act as sensory organelles that transmit extracellular clues into intracellular signals for molecular and cellular responses. Biochemical and molecular defects in primary cilia are associated with a wide range of diseases, termed ciliopathies, with phenotypes ranging from polycystic kidney disease, liver. A renal disease can be attributed to a variety of causes which, include genetics, injuries and medicine. (National Institute of Diabetes and Digestive and Kidney Diseases) Anti-GBM (Goodpasture's) Disease The primary NIH organization for research on Kidney Diseases is the National Institute of Diabetes and Digestive and Kidney Diseases

Primary Immunodeficiency Disease AAAA

According to Boundless (2016), the spread and severity of the infectious disease is influenced by many predisposing factors. Some of these are more general and apply to many infectious agents, while others are disease specific. Some predisposing factors of contracting infectious diseases can be anatomical, genetic, general and disease-specific Infectious Disease . Certification Examination Blueprint . Purpose of the exam . The exam is designed to evaluate the knowledge, diagnostic reasoning, and clinical judgment skills expected of the certified infectious disease specialist in the broad domain of the discipline

10How an antibody operates/works?Sign and Symptoms of Prolapse Uterus - PT Master GuideAntimicrobial Prophylaxis in Surgery | Basicmedical KeyDisease Patterns | Boundless MicrobiologyCase Study:SUNY Upstate Medical University

This disease affects the medium and small arteries, so it often affects the fingers and toes. The disease may present as a painful and poorly healing wound or ulcer/gangrene at the fingertip. Involvement of multiple fingers is common. The primary treatment is to avoid smoking. Amputationis sometimes necessary. Dactylitis (Figure 3 Microbial diseases that can spread from an infected person to a healthy person through air, water, food or physical contact are called communicable diseases. Examples of such diseases include cholera, common cold, chicken pox and tuberculosis. Example of a carrier is the female Anopheles mosquito, which carries the parasite of malaria Primary sclerosing cholangitis (PSC) is a chronic, progressive, cholestatic liver disease resulting from inflammation, fibrosis, and destruction of the intrahepatic and extrahepatic bile ducts. This leads to multiple areas of stricturing in the biliary tree and eventually to cirrhosis. Prevalence and Risk Factors Jennifer S. Rota, Carole J. Hickman, Sun Bae Sowers, Paul A. Rota, Sara Mercader, William J. Bellini, Two Case Studies of Modified Measles in Vaccinated Physicians Exposed to Primary Measles Cases: High Risk of Infection But Low Risk of Transmission, The Journal of Infectious Diseases, Volume 204, Issue suppl_1, July 2011, Pages S559-S563. Communicable diseases are those diseases caused by bacteria, viruses, parasites, and protozoa that are passed from one person to another. It is important to recognize when someone in a group setting is sick with a communicable disease so steps can be taken to obtain medical care and prevent the spread of disease to others infection definition: 1. a disease in a part of your body that is caused by bacteria or a virus: 2. an act of passing. Learn more