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

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.
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.
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.

Related Questions

What are the symptoms of whooping cough (pertussis)? The symptoms of whopping cough are very similar to a flu, what are the main distinctions?

Actually, . Actually, the whooping cough (pertussis) resembles a cold more than the flu. The main symptoms are usually nasal congestion, sore throat and cough. Pertussis is usually indistinguishable from a cold until the 2nd or 3rd week of infection, when severe attacks of cough occur, which may trigger vomiting. This cough may last up to six to eight weeks. It is almost impossible to distinguish pertussis from a cold during the first week of symptoms, and requires lab tests. Severe coughs developing two weeks apart in several family members may be a clue. Unfortunately, antibiotics do not help unless started within the first (possibly 2nd) week of pertussis infection. When they are prescribed, it is usually to prevent spread for others. Read more...
Cough. The cough one gets with whooping cough is very specific and is more paroxysmal or like a spasm. The patient coughs until there is no air left in the lungs and when they breath in it makes a "whooping" sound. With whooping cough the patient often feels well except when coughing but with the flu they will feel poorly even when not coughing, including headache, aches and chills. Read more...

What are the initial symptoms of whooping cough (pertussis)?

Pertussis. is divided into three stages: catarrhal, paroxysmal and convalescent. The 1st stage is characterized by common cold symptoms for 1-2 weeks. The 2nd stage is marked by the characteristic cough, and the 3rd by gradual resolution over 2-3 weeks. Read more...

How do I take care of someone with pertussis? What's the best way to take care of and attenuate the symptoms of someone who has whooping cough?

Whooping . Whooping cough, or pertussis, is caused by the airborne transmission of bacteria to the respiratory tract. Early treatment of the disease is important in lessening the severity of the disease as well as in preventing further transmission to contacts. Unfortunately whooping cough, especially in adults, is often not diagnosed until much later in the disease course because it is misconceived that previously vaccinated individuals cannot be infected. In fact, previously vaccinated adults often have atypical symptoms that are difficult to attribute specifically to pertussis. Several different common antibiotics are available for the treatment of pertussis. Treatment with the antibiotic Azithromycin is recommended for symptoms that have developed within two weeks of presentation, and as mentioned earlier can decrease symptom duration and severity. There are no other proven medications that can attenuate coughing during pertussis infections; however, steroids, cough suppressants and inhaled medications such as albuterol have been tried. Read more...
Patient care. Make sure you have had immunization against whooping cough. Wear a mask when working with the patient. Offer symptomatic care in the form of fluids. Make sure the patient is gettin plenty of steam inhalation and is properly hydrated. Wash hands with soap and water after contact with patient. Read more...

Someone at my work has whooping cough (pertussis). What can I do to protect myself from contracting pertussis?

Doctor can evaluate. The booster shot (tdap) is recommended for all adults, of all ages, to protect against pertussis. Depending on the individual situation, one's primary care doctor can advise on whether or not antibiotics are needed. Read more...

How does whooping cough - bordetella pertussis - enter your body and what does it do?

Persistent cough. It is an airborne disease that you acquire from someone else and it is highly contageous. It can result with a persistent cough that may last weeks, even after treatment with antibiotics. The cough is incapacitating. Read more...

Can you tell me how to know whether your child has pertussis (whooping cough) or bad cough?

You get tested. Unfortunately, the vaccine avoiders have increased the frequency of pertussis in the us to dangerous levels. With wide vaccine use, this disease affected as few as 2500 nationwide with rare deaths in the early 90's but is now up to 30, 000 nationwide, with more than 30 deaths/yr, most in infants. A test of the secretions in your kids nose can be assessed for evidence of the pertussis. Read more...

Why is pertussis (whooping cough) still common in Canada but not in other developed countries?

Poor immunisations. could either be because children are not getting immunized completely.it could also be because the immunity has been seen to wane in adults so until age 64 yrs they need TDap booster so they do not transmit it to children. Read more...