5 doctors weighed in:
At what times is chicken pox contagious?
5 doctors weighed in

Dr. James Ferguson
Pediatrics
2 doctors agree
In brief: Prior to spots + 7
Unfortunately CP is often passed in oro-nasal secretions for 1-2 days before the first spots appear.(leading to frustration on finding source) debris from blisters can spread CP until the last blisters have dried.
Some offer 1 day before until day 7 of the rash as the general period of infectivity.

In brief: Prior to spots + 7
Unfortunately CP is often passed in oro-nasal secretions for 1-2 days before the first spots appear.(leading to frustration on finding source) debris from blisters can spread CP until the last blisters have dried.
Some offer 1 day before until day 7 of the rash as the general period of infectivity.
Dr. James Ferguson
Dr. James Ferguson
Thank
Dr. Scott Katz
Pediatrics
In brief: Until crusted over.
Chicken pox is considered contagious until all the small blisters (vesicles) have turned to a dry crust.

In brief: Until crusted over.
Chicken pox is considered contagious until all the small blisters (vesicles) have turned to a dry crust.
Dr. Scott Katz
Dr. Scott Katz
Thank
Dr. Arthur Torre
Pediatrics - Allergy & Asthma
In brief: Till rash is crusted
Chicken pox is contagious for a minimum of 5 days after the onset of the rash until all the lesions are crusted over- whichever is longer.

In brief: Till rash is crusted
Chicken pox is contagious for a minimum of 5 days after the onset of the rash until all the lesions are crusted over- whichever is longer.
Dr. Arthur Torre
Dr. Arthur Torre
Thank
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