Navigation Links
Whooping Cough Immunity Lasts 30 Years or More

Finding defies belief that resistance wears thin much sooner

FRIDAY, Oct. 30 (HealthDay News) -- Exposure to whooping cough will provide immunity for an average of three decades, new research suggests.

Doctors had previously thought that immunity lasted for much less time. But the new study, by researchers based at the University of Michigan and the University of New Mexico, rebuts that assumption.

Whooping cough, also known as pertussis, has become more common in the United States and elsewhere since the 1980s. Some health experts have thought that immunity is wearing off for people who'd been vaccinated or had been infected by the disease.

For the study, researchers used medical data from England and Wales from before a vaccine was available (1945-1957) as well as later (1958-1972). They created a mathematical model to determine how long immunity lasted after people were exposed naturally to the disease.

They found that immunity after natural infection lasts for at least three decades, on average, and maybe even as long as 70 years. The study suggests that people who lose some of their immunity might still have some protection and even gain more immunity when they're exposed again to whooping cough.

"This is surprising because clinical epidemiologists currently believe the duration of pertussis immunity is somewhere between four and 20 years," study co-author Pejman Rohani, of the University of Georgia, said in a news release from the publisher of PLoS Pathogens. The findings are published online Oct. 30 in the journal.

But there are caveats. "It's worth pointing out that in the past 20 years or so, the nature of the vaccines that have been used has changed quite fundamentally," Rohani said. "The data we're using are from a time when a whole-cell vaccine was in use. Now an acellular vaccine, which stimulates a different part of the immune system, is typically used, especially in North America."

More information

The U.S. National Library of Medicine has more on whooping cough.

-- Randy Dotinga

SOURCE: Public Library of Science, news release, Oct. 29, 2009

Copyright©2009 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. Refusing Shots Puts Kids at Higher Risk for Whooping Cough
2. Parents of new babies should be considered for a whooping cough booster, say experts
3. Earlier Vaccination Could Cut Whooping Cough Deaths
4. Substance Abuse Expert Dr. Drew Joins Forces with the Five Moms to Raise Awareness About OTC Cough Medicine Abuse Among Teens
5. Kidz-Med Inc. Receives Large Purchase Order Leading to Substantial Sales Increase at Beginning of Cough and Cold Season
6. Centrix Pharmaceutical Announces Clofera(TM), a Unique Antitussive and Nasal Decongestant for the Temporary Relief of Cough and Nasal Congestion
7. Partnership for a Drug-Free America / MetLife Foundation Survey Shows More Parents Are Talking With Their Teens About Cough Medicine Abuse
8. Along With Hand Washing and Covering Up When Coughing, Add Nose Washing to Steps Consumers Looking to Take for Flu Prevention
9. New Partnership for a Drug-Free America 20th Annual Study Shows Progress in Teens Recognizing Dangers of OTC Cough Medicine Abuse
10. Popular cold and cough treatment may create respiratory distress in young children
11. New study shows that a cough medicine ingredient could effectively treat prostate cancer
Post Your Comments:
(Date:6/26/2016)... ... June 27, 2016 , ... Quality metrics are proliferating in cancer ... they remain in the eye of the beholder, according to experts who offered insights ... American Journal of Managed Care. For the full issue, click here . , ...
(Date:6/26/2016)... ... ... a legally blind and certified personal trainer is helping to develop a weight loss fitness ... to fix the two major problems leading the fitness industry today:, , ... They don’t eliminate all the reasons people quit their exercise program ...
(Date:6/25/2016)... ... 2016 , ... The temporary closing of Bruton Memorial Library on June 21 due to a ... new, often overlooked aspect of head lice: the parasite’s ability to live away from a ... occurrence, but a necessary one in the event that lice have simply gotten out of ...
(Date:6/25/2016)... (PRWEB) , ... June 25, 2016 , ... ... athletes and non-athletes recover from injury. Recently, he has implemented orthobiologic procedures as ... City area —Johnson is one of the first doctors to perform the treatment. ...
(Date:6/24/2016)... ... June 24, 2016 , ... Those who have experienced traumatic events may suffer ... unhealthy avenues, such as drug or alcohol abuse, as a coping mechanism. To avoid ... healthy coping following a traumatic event. , Trauma sufferers tend to feel a range ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... , June 23, 2016 Research and ... Global Market - Forecast to 2022" report to their ... treatment method for the patients with kidney failure, it replaces ... fluid from the patient,s blood and thus the treatment helps ... and chloride in balance. Increasing number of ...
(Date:6/23/2016)... , June 23, 2016  In a startling report released ... failing their residents by lacking a comprehensive, proven plan to eliminate ... a definitive ranking of how states are tackling the worst drug ... only four states – Kentucky , ... Vermont . Of the 28 failing states, three – ...
(Date:6/23/2016)... LOS ANGELES , June 23, 2016 /PRNewswire/ ... (NASDAQ: CAPR ), a biotechnology company ... first-in-class therapeutics, today announced that patient enrollment in ... progrEssion in Duchenne) has exceeded 50% of its ... its enrollment in the third quarter of 2016, ...
Breaking Medicine Technology: