RNA Plus Genome that Serves as Messenger RNA: Coronaviruses
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These viruses (100 nm in diameter) have chracteristically long (12–24 nm), widely spaced, bulbous surface projections (peplomeres), a lipid-containing envelope, and a single-stranded RNA + genome. The virus replicates in the cytoplasm of the infected cell and matures by budding through the intracytoplasmic membranes. Viral inclusion bodies may be seen in the cytoplasm (figure 67): The mechanisms of virus replication are similar to those described for the picorna- and toga virus families.
KeywordsInfectious Bronchitis Virus Mouse Hepatitis Virus Feline Infectious Peritonitis Feline Infectious Peritonitis Virus Murine Hepatitis Virus
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