click below
click below
Normal Size Small Size show me how
DNA viruses
Mod 5 lec 1
| Question | Answer |
|---|---|
| adenovirus | ds, replicates in nucleus, icosahedral, no envelope, respiratory, eye and GI disease |
| Hepadnavirus | ds with short ss section. Icosahedral, envelope, diagnosed by serology- not culture |
| Herpesvirus | ds, replicates in nucleus, icosahedral, envelope, demonstrates latency |
| Herpes simplex virus | Type 1 (cold sores) and 2(genital). Skin an mucus membrane infections, encephalitis, easily grown in culture |
| Varicella-zoster virus | chicken pox and shingles, Tzanck stain used for direct tissue exam to see giant cells |
| Herpesvirus species | HSV, VZV, CMV, EBV, HHV 6,7,8 |
| Cytomegalovirus | found in blood, urine, throat. Shell vial culture, serology. mono-like in adults, often fatal in immunocomprimised. |
| Epstein-Barr virus | Heterophile positive in IM (85%), can produce tumors, not cultured. Serology detects early ag, viral capsid ag, nuclear ag. |
| HHV 6,7,8 | 6+7 roseola, detect by molecular |
| Papillomavirus | ds, no culture- molecular methods used, infect skin and mucus membrane, cause wart and cervical cancer |
| parvovirus | ss, replicates in nucleus, small, no envelope, B-19, infects bone marrow cells. No culture- molecular |
| poxvirus | ds, replicates in cytoplasm, largest virus, brick shaped with envelope, small pox, monkey pox |