VIRAL HEAMORRHAGIC FEVER

Question 1

What is VIRAL HEAMORRHAGIC FEVER?

Answer 1

VHF is a multisystemic clinical infections caused by several distinct families of rna viruses resulting in bleeding diathesis
Many of these viruses cause rapidly progressive disease with high mortality rate

Question 2

Classes of viruses causing vhf: Viral groups and Representative viruses

Answer 2

Viral group
Representative viruses
1- Filoviruses

Ebola V and Marburg V
2- Flaviviruses (82 members)
-Yellow fever V -West Nile V
- Dengue Fever V

3- Bunyaviruses
(Rift Valley fever virus (RVV),
Crimean-Congo hemorrhagic fever
(CCHF) virus, and Hantavirus pulmonary syndrome (HPS).

2- Arenavirus
Lassa Fever V
New World Arena Viruses

Question 3

Epidemiology

Question 4

What are the routes of infection and incubation period?

Answer 4

BITES BY INFECTED ATHROPODS(TICK AND MOSQUITOES)
AEROSOL FROM INFECTED EXCRETA OF RODENTS
DIRECT CONTACT WITH INFECTED ANIMALS OR CARCASSES OR FORMITES
HUMAN-HUMAN CONTACT
INCUBATION PERIOD OF 2-21DAYS

Question 5

What is the pathogensis?