Flashcards in Influenza Deck (77)
How does chest x-ray look with seasonal flu?
how long does acute infection of seasonal flu?
7 days, cough lasts a few weeks
at risk groups for seasonal flu?
incubation (days) of seasonal flu?
infectiousness of seasonal flu (days)??
deaths worldwide from seasonal flu?
1/4 to 1/2 MILLION
Influenza binds to what on non-ciliated respiratory epithelium?
sialic acid sugar
What kind of linkage on the sialic acid is it to galactose?
Flu spreads from infection site?
Which airways does influenza like to replicate?
what cytokine causes malaise, head and muscular aches?
What cytokine causes fever?
where is ciliated epithelium in respiratory system?
trachea and bronchi
Do you normally get viral pneumonia with flu?
Nope, usually due to secondary bacterial infections after cilia destruction
Influenza have envelopes?
Influenza and Rotavirus has what kind of genome?
single stranded -ve sense RNA
T/F?Influenza B can infect other species but only A is humans
False. B infects humans only, A infects other species
Influenza C is a major problem these days?
Naw. minor pathogen bro.
HA and NA for Influenza stands for?
What does NS1 the non-structural protein in Influenza do?
how man gene segments in Influenza? encodes how many proteins?
8 segments encode 10+ proteins
how many polymerase subunits does Influenza come packaged with per RNP?
What is RNP in Influenza?
HA is the snipper in Influenza?
Nope, the gripper
NA is the gripper or snipper in Influenza?
How many subtypes of HA and NA do we know of for Influenza?
how many subtypes of HA and NA are there for Influenza B?
What are the ancestral hosts of Influenza A?
Current Influenza A subtypes in humans are?