Influenza

Question 1

Influnza type A communicability period

Answer 1

Infectivity is very high and extend in short time until pyrexia settle

Question 2

Incupation period of influnza type A

Answer 2

From 12 h to 5 days

Question 3

Mode of transmition of influnza type A

Answer 3

1.Droplet infection
2.hands
3.contaminating articles

Question 4

Factor responsible for Rapid spread of influnza virus

Answer 4

1.large number of subclinic cases
2.short incupation period
3.short duration of immunity
4.absence of cross immunity

Question 5

Pathological agent of influnza is

Answer 5

Influnza type A,B,C , from Orthomyoviridae family

Question 6

Complication of influnza

Answer 6

Laryngiotrachiobronchitisis
Bronchiolitis
Pnumonia

Question 7

Seasons of influnza outbrak accourding to earth hemisphere

Answer 7

Souther hemisphere from may to september
Northen hemiphere in the winter

Question 8

Influnza virus can survive in

Answer 8

1.humid low tempreture places
2.overcrowding ares
((Virus can be killed by heat sun ray , formalin ))

Question 9

Diagnoisis of influnza virus

Answer 9

1.virus culture (by swaps)
2.detection of viral antigen by photofluroscopy
3.reverse transcriptase polymerase chain reaction (Rt-PCR)

Question 10

Prevention , control of influnza

Answer 10

1.vaccination
2. Amantadine (100mg twice daily)
Given to high risk gruop protect 70% of the symptoms
3.National , international monitoring
1.health education
2.prompt reporting
3.survaeillance of influnza can extend even to animals