True Orthomyxoviruses False Coronaviruses False Flaviviruses True Rhabdoviruses Picornaviruses, coronaviruses and flaviviruses are positively stranded RNA viruses 3. The genome of orthomyxoviruses consists of 7 or 8 single stranded RNA segments, bunyaviruses 3 single stranded RNA segments, and rotaviruses 11 double stranded RNA segments. False Rotaviruses False Parvoviruses True Orthomyxoviruses 5. All viruses contain protein. Only enveloped viruses are susceptible to lipid solvents.
All viruses are intracellular parasites.
EBV is associated with Burkitt's lymphoma, nasopharyngeal carcinoma, and large-cell lymphomas in immunocompromised individuals. Although adenoviruses may be oncogenic in vitro, there is no evidence that they are associated with human cancers. HHV-8 is associated with Kaposi's sarcoma. All the above viruses may cause congenital infection. Rubella and CMV are usually transmitted transplacentally in utero, whilst HIV, HBV and HSV-2 are usually transmitted perinatally during the birth process.