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Infectious Diseases

Hepatitis simply means a swelling or inflammation of the liver. The type hepatitis that a person contracts (there are 5 common forms) affects their long-term prognosis. The most common and most severe of these different types of liver infection is Hepa...

Actinomyces israelii is a species of Actinomyces and is sometimes known as the "most misdiagnosed disease" since it is often confused with neoplasms. It is a colonizer of the vagina, colon, and mouth. Infection happens through breach of the mucosal bar...

Zucchini Yellow Mosaic Virus (ZYMV) is an aphid-borne potyvirus and is regarded as a major pathogen of cucurbits. It affects pumpkins, squashes, vegetable marrows, courgettes, melons, watermelons, cucumbers, gherkins, and various gourds especially zu...

Yellow fever is an acute viral hemorrhagic disease with a 40 to 50 nm enveloped RNA virus with positive sense of the Flaviviridae family. It is transmitted by the bite of female mosquitoes and is found in tropical and subtropical areas in South America...

Tobacco mosaic virus (TMV) is a positive-sense single stranded RNA virus that infects plants, namely tobacco and other members of the family Solanaceae. It causes characteristic patterns on the leaves. In 1930 it was determined that an infectious agent...

St. Louis Encephalitis is a disease caused by the Culex mosquito borne St. Louis Encephalitis virus. It is related to Japanese encephalitis virus and is a member of the Flaviviridae subgroup. It mainly affects the United States and occasionally hits Ca...

Rotavirus is the most common cause of diarrhea among infants and young children and is one of several viruses that cause the stomach flu. It is in the family Reoviridae and is a genus of double-stranded RNA. Most children have been infected by the age ...

Rinderpest (also cattle plague) is an infectious viral disease of cattle, domestic buffalo, and some species of wildlife. It is characterized by fever, oral erosions, diarrhea, lymphoid necrosis, and high mortality. The last confirmed case was in 2001....

Measles, also known as Rubeola or Morbilli, is caused by a virus and infects the respiratory system. Morbilliviruses are enveloped, single-stranded, negative-sense RNA viruses. Symptoms include fever, cough, runny nose, red eyes and a generalized macul...

Lymphocytic choriomeningitis (LCM) is a viral disease, spread by rodents, that presents as aseptic meningitis, encephalitis, or meningoencephalitis. Lymphocytic Choriomeningitis Virus (LCMV) is the causative agent and is a member of the Arenaviridae fa...

Lassa fever, first described in 1969 in Lassa, is an acute viral hemorrhagic fever. Clinical cases were known a decade before this but were not associated with this viral pathogen. It is endemic in West African countries and causes approximately 5,000 ...

Herpes zoster (or zoster), is known as shingles or zona and is a viral disease characterized by painful skin rash with blisters in a limited area on one side of the body. Initial infection causes chickenpox. Once chickenpox is over the virus remains in...

Hepatitis A, caused by hepatitis A virus, is an acute infectious disease of the liver that is transmitted person to person by ingestion of contaminated food or water or through direct contact with an infectious person. Millions of people are believed t...

Classical swine fever, or hog cholera, is a contagious disease of pigs and wild boar. It causes fever, skin lesions, convulsions, and usually death within 15 days. Symptoms are indistinguishable from those of African swine fever. CSFV, previously calle...

Orf, an exanthemous disease, is caused by a parapox virus primarily occurring in sheep and goats. It has many other names including thistle disease, scabby mouth, and sheep pox. It can infect humans as well. It is a zoonotic disease meaning that humans...

Foot-and-mouth disease, FMD, is sometimes fatal and is highly contagious for cloven-hoofed animals. Along with hooved animals hedgehogs and elephants are susceptible to the disease as well. Llama and alpaca can develop mild symptoms but are resistant t...

Dengue fever and dengue hemorrhagic fever (DHF), caused by the dengue virus, is among the spectrum of acute febrile tropical disease and is transmitted by mosquitoes. Occurring mainly in the tropics it can be life threatening and is caused by four clos...

The common cold is a viral disease of the upper respiratory system, caused primarily by rhinoviruses and coronaviruses. Symptoms usually include a cough, sore throat, runny nose, and a fever. There is no known treatment to shorten the duration of the v...