The nucleic acids of various viruses encode surface proteins (e.g.hemaaglutinin (HA) of influenza virus) that agglutinate red blood cells (RBC) of a variety of species. The reaction of viral hemagglutinins with red blood cells results […]
Diagnosing Ebola in an person who has been infected for only a few days is difficult, because the early symptoms, such as fever, are nonspecific to Ebola infection and are seen often in patients with […]
Ebola Virus Disease is transmitted from Human to Human (H2H) through direct, physical contact with the bodily fluids (vomit, faeces, urine, blood, etc.) of people who have been infected with or died from Ebola virus […]
1.What is Ebola Virus Disease (EVD)? Formerly known as Ebola haemorrhagic fever, Ebola virus disease (EVD), is a severe illness in humans with a case fatality rate of up to 90%. Ebola first appeared in […]
Why DNA viruses replicate in the Nucleus? Once the nucleocapsid of DNA virus enters the host cell, it proceeds to the nucleus where it mimics the genome of the host cell. Usually, the viral genome […]
Prophylaxis: Vaccines are available for yellow fever and Argentine hemorrhagic fever that can protect against these diseases to some extent. Prevention of Viral Hemorrhagic Fever can be achieved by either control of rodents, or protecting from bite […]
Infections of the upper respiratory tract usually involve the ears, the mucus membranes lining the nose and throat above the epiglottis and the sinuses. Upper respiratory tract specimens should be collected within 3 days of […]
Infectious agents, such as viruses and bacteria, are the causes of several common cancers. Infection with the bacterium Helicobacter pylori predisposes to gastric cancer. Chronic infection with HBV, HCV predisposes to hepatocellular carcinoma. In this […]
The name measles is derived from the Latin, misellus, meaning miserable. Measles (also called Rubeola-(from rubeolus, Latin for reddish) ) is usually a disease of childhood (aged 3-10 years) and is followed by life-long immunity. Important […]
The diagnosis of a viral infection can be established in several ways, often used together, namely: Detection of virus particles in specimen taken from the appropriate site. Detection of viral antigens (Ag) in blood or […]
HeLa cells are one of the best known continuous tissue-culture cells lines. HeLa cells are widely used in research because they are versatile, readily available, and easy to propagate serially. HeLa cells are also known […]
For the person to get infection with HIV Virus, they must have to acquire the virus from external sources, the only external source is another human being who is infected with HIV virus. That human […]
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