Antigenic shift — Not to be confused with antigenic drift or genetic drift. NIAID illustration of potential influenza antigenic shift Antigenic shift is the process by which two or more different strains of a virus, or strains of two or more different viruses … Wikipedia
Orthomyxoviridae — Virus classification Group: Group V (( )ssRNA) Order: Unassigned Family: Orthomyxoviridae … Wikipedia
Double-stranded RNA viruses — Electron micrograph of rotaviruses. The bar = 100 nm Virus classification Group: Group III (ds … Wikipedia
Capsid — Schematic of a Cytomegalovirus 3D model of Helical capsid structure … Wikipedia
Microbiology — An agar plate streaked with microorganisms … Wikipedia
RNA virus — An RNA virus is a virus that has RNA (ribonucleic acid) as its genetic material.[1] This nucleic acid is usually single stranded RNA (ssRNA) but may be double stranded RNA (dsRNA).[2] The ICTV classifies RNA viruses as those that belong to Group… … Wikipedia
Virus classification — is the process of naming viruses and placing them into a taxonomic system. Similar to the classification systems used for cellular organisms, virus classification is the subject of ongoing debate and proposals. This is mainly due to the pseudo… … Wikipedia
Oncovirus — An oncovirus is a virus that can cause cancer. This term originated from studies of acutely transforming retroviruses in the 1950–60s, often called oncornaviruses to denote their RNA virus origin. It now refers to any virus with a DNA or RNA… … Wikipedia
Viral envelope — Schematic of a Cytomegalovirus Many viruses (e.g. influenza and many animal viruses) have viral envelopes covering their protein capsids.[1] The envelopes typically are derived from portions of the host cell membranes (pho … Wikipedia
Virus — This article is about the biological agent. For other uses, see Virus (disambiguation). For a generally accessible and less technical introduction to the topic, see Introduction to viruses. Viruses … Wikipedia