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Three main symptoms of croup?
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Main virus of croup?
Parainfluenza virus
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3 diseases caused by parayxovirus
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Order of most common croup viruses?
PIV 1 > PIV 2 >> RSV
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Which PIV are more epidemic (1, 2, or 3)?
1 & 2
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T/F Type 3 PIV has a seasonal preference?
F, none
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Which PIV is endemic?
Type 3
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when are Type 1,2, & 3 PIVs epidemic?
- 1&2: autumn
- 3: late winter, spring
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What is the common throat sign for PIV causing croup?
Steeple sign
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When is a child most likely to have an outbreak with RSV?
- 69% first year
- 83% second year
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When is the most dangerous time to give birth to a child b/c of RSV?
April - Sept b/c of ab loss after breastfeeding by the time winter comes around
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Other than months, what are the other four most common causes of RSV transmission?
- Crowded places
- older children
- day care
- non-breastfed
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Most common drug used for RSV treatment?
Ribavirin
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For titers, what is the increase that marks an infection?
4-fold increase
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