12 doctors weighed in:

How long is pertussis (whooping cough) considered contagious after symptoms begin?

12 doctors weighed in
7 doctors agree

In brief: Treated or not?

If pertussis is treated and you have started antibiotics you are contagious for about 5 to 7 days.
If you are not treated the period extends from 3 to 6 weeks.

In brief: Treated or not?

If pertussis is treated and you have started antibiotics you are contagious for about 5 to 7 days.
If you are not treated the period extends from 3 to 6 weeks.
Dr. Josephine Ruiz-Healy
Dr. Josephine Ruiz-Healy
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Dr. Keegan Duchicela
Family Medicine
4 doctors agree

In brief: 2-3 weeks

Pertussis or whooping cough is pretty contagious - usually up to 2-3 weeks after the cough begins (and sometimes longer).
If you get treated with antibiotics early in the illness, the time period for being contagious is reduced to about 5 days. During the time you have it, make sure you stay away from newborns and other non-immunized people.

In brief: 2-3 weeks

Pertussis or whooping cough is pretty contagious - usually up to 2-3 weeks after the cough begins (and sometimes longer).
If you get treated with antibiotics early in the illness, the time period for being contagious is reduced to about 5 days. During the time you have it, make sure you stay away from newborns and other non-immunized people.
Dr. Keegan Duchicela
Dr. Keegan Duchicela
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Dr. Alfredo Garcia
Pediatrics
2 doctors agree

In brief: Pertussis

Whooping cough is most contagious in the first phase lasting 2 weeks.
However, it is contagious for at least 21 days after its onset. Once diagnosed using a PCR test, one will still be contagious for 5 days during treatment with zithromycin, Erythromycin or trimothoprim-sulfasoxazole.

In brief: Pertussis

Whooping cough is most contagious in the first phase lasting 2 weeks.
However, it is contagious for at least 21 days after its onset. Once diagnosed using a PCR test, one will still be contagious for 5 days during treatment with zithromycin, Erythromycin or trimothoprim-sulfasoxazole.
Dr. Alfredo Garcia
Dr. Alfredo Garcia
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