Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
28 Cards in this Set
- Front
- Back
|
What are the 7 DNA virus families?
|
1. Poxviridae
2. Herpesviridae 3. Papillomaviridae 4. Polyomaviridae 5. Adenoviridae 6. Hepadnoviridae 7. Parvoviridae |
|
|
Poxviruses have double stranded DNA, complex capsids and envelopes, and are the largest viruses(up to 300 nm). TRUE/FALSE
|
TRUE.
|
|
|
What is variola major and minor?
|
Smallpox, also known as variola exists in a major and minor form. The major type is the more severe form with a mortality of 20% or greater. The minor type, has a mortality rate of < 1%. Both infect organs and cause high fever, malaise, delirium and prostration.
|
|
|
What is Molluscum contagiosum?
|
It is caused by the Molluscipoxvirus. It is given by smooth, waxy tumor like nodules on the face and trunk and limbs and is spread by contact infected children. A genital form exists. Nodules are removed by freezing or chemical means.
|
|
|
Ocular herpes is caused by a latent infection with HSV-1, that travels down the opthalmic branch of the trigeminal nerve. TRUE/FALSE
|
TRUE.
|
|
|
What is Whitlow?
|
Both Herpes 1/11 may cause an inflammed blister called a whitlow if the virus enters a cut or break in the skin of a finger.
|
|
|
What is Herpes gladiatorum?
|
Athletes may develop this from contact with HSV-1 lesions on the skin during wrestling. herpes may also cause encephalitis, meningitis and pneumonia.
|
|
|
Can herpes viruses form syncytiums?
|
Yes.
|
|
|
HSV-1 is usually contracted in childhood, and HSV-2 is usually contracted between ages 15-29. TRUE/FALSE
|
TRUE.
|
|
|
List 3 treatment protocols for Herpes>
|
1. Acyclovir
2. Iododeoxyuridine 3. Trifluridine |
|
|
Name 3 Herpes virus infections.
|
1. Varicella-zoster virus
2. Epstein- Barr 3. Cytomegalovirus |
|
|
Cytomegalovirus is so called because infected cells become enlarged. TRUE/FALSE
|
TRUE. About half the US population is infected with CMV.
|
|
|
What are Hepadnoviridae?
|
They are enveloped DNA viruses with icosahedral capsids that invade and replicate in liver cells. The genome includes both double stranded and single stranded DNA.
|
|
|
Does Hepatitis B belong to this group?
|
Hepatitis B virus in the genus Orthohepadnovirus is unique among DNA viruses in that it replicates through an RNA intermediary.
|
|
|
List the RNA pathogenic viruses?
|
1. Picornaviridae
2. Caliciviridae 3. Astroviridae 4. Togaviridae 5. Flaviviridae 6. Coronaviridae 7. Retroviridae 8. Paramyxoviridae 9. Rhabdoviridae 10. Filoviridae 11. Orthomyxoviridae 12. Bunyaviridae 13. Arenaviridae 14. Reoviridae |
|
|
Picornaviridae are the smallest of animal viruses(22-30nm diamter). TRUE/FALSE
|
TRUE.
|
|
|
Name some diseases related to the Picornaviridae.
|
1. Rhinovirus- common cold
2. Enterovirus- polio, Hepatitis A 3. Coxsackie A/B 4. Echoviruses meningitis/ colds |
|
|
Pleconaril reduces the seriousness and duration of colds. TRUE/FALSE
|
TRUE.
|
|
|
Calicivirus and Astroviruses are small, round enteric viruses that cause acute gastroenteritis. TRUE/FALSE
|
TRUE
|
|
|
Caliciviruses cause diarrhea, and vomiting, and the best studied are the noroviruses. TRUE/FALSE
|
TRUE
|
|
|
Hepatitis E is in its own family(Hepaviridae) and cause enteric hepatitis. TRUE/FALSE
|
TRUE.
|
|
|
List three diseases caused by togaviruses.
|
Eastern equine encephalitis
western equine "" """ Venezuelen equine '' "" |
|
|
St Louis, Japanese, West Nile and Russian spring summer are flaviviruses. TRUE/FALSE
|
TRUE.
|
|
|
dengue fever or breakbone fever is caused by a flavivirus and is transmitted by the Aedes mosquito. TRUE/FALSE
|
TRUE.
|
|
|
Yellow fever is caused by what type of virus?
|
Flavivirus. It leads to degeneration of the liver, kidneys, and heart with jaundice massive hemorrhaging and black vomiting. It is fatal in app. half of all cases.
|
|
|
Rubella is what type of virus?
|
Rubivirus is a togavirus. (German measles)
|
|
|
Hepatitis C is a flavivirus. TRUE/FALSE
|
TRUE
|
|
|
Coronaviruses have envelopes and are the 2nd most frequent cause of colds. TRUE/FALSE
|
TRUE.
|
