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Find a Flu Clinic             Flu.gov H1N1 Influenza Viruses Diagnosis: rapid influenza diagnostic tests (RIDTs), and direct immunofluorescence assays (DFAs) are lower than real time reverse polymerase chain reaction (RT-PCR) tests and viral…

See CDC.  Influenza Antiviral Medicines (CDC)   FDA (drugs approved for influenza) See also Types A-C and Respiratory viruses Videos: Antigenic shift Introduction: The flu is a contageous respiratory illness caused by…

Companies: Gilead Sciences   Merck Introduction: HCV is sometimes referred to as the "silent epidemic" because more than 2.4 million Americans are infected with the virus, but it takes many years to…

Hepatitis A virus (HAV): HAV belongs to the picornavirus group. HAV has diminished in importance over the past several decades in developed countires, but infection remains endemic in many regions of Central…

Introduction Dengue virus (DENV) is a positive-sense, single-stranded RNA (ssRNA) virus classified within the genus Orthoflavivirus of the Flaviviridae family. It exists as four antigenically distinct serotypes (Dengue 1-4). The…

Papillomaviruses may be classified into distinct groups based on the host that they infect. Structure: Papillomaviruses are small (50-60 nm), nonenveloped, icosahedral DNA viruses that encode for up to 80…

Introduction: Poxviruses comprise a family of genetically related, large, enveloped, DNA viruses that replicate exclusively within the cytoplasm of vertebrate or invertebrate cells. DNA viruses typically replicate and express their…

KSHV is of the  and is a lymphotropic herpesvirus. KSHV (also known as human herpesvirus 8 or HHV-8) is associated with the malignancies Kaposi's sarcoma (KS), primary effusion lymphoma (PEL) and plasmablastic variant…

Introduction: Herpes Simplex Virus 1 & 2 (HSV-1) are closely related (~50% nucleic acid identity and over 70% amino acid identity) of the alpha subgroup. HSV-1 and HSV-2 initially infect and replicate in mucoepithelial cells…

Introduction: Epstein-Barr virus (EBV), also known as human herpesvirus 4 (HHV-4), is a member of the gammaherpesvirus family. EBV belongs to the gamma 1 or lymphocryptovirus genus and was identified…