Navigation Links
Chickenpox Protection: Get That Booster
Date:8/9/2008

Immunity can fade after first injection, so second shot now recommended

FRIDAY, Aug. 8 (HealthDay News) -- When the vaccine against chickenpox was introduced in the United States in 1995, medical experts hoped it would be a one-shot deal, with a single injection about the time of a child's first birthday giving lifelong immunity.

Now, experts are learning that's not so. They've found that the protection from a single immunization fades over time, and that a booster shot is needed if you want your child to have the best chance at lifelong protection from chickenpox.

The experts reached that conclusion after examining 10 years of data and the effects of the vaccine on more than 11,000 people who got the shot between 1995 and 2004. Of those individuals, 9.5 percent, or 1,080, experienced so-called "breakthrough disease," researchers reported last year in the New England Journal of Medicine.

"The breakthrough was mild," said Dr. Robert Frenck Jr., a professor of pediatrics at Cincinnati Children's Hospital and a member of the American Academy of Pediatrics' committee on infectious diseases.

Chickenpox, which is caused by an infection by the varicella-zoster virus, typically starts as a rash on the face that spreads. The rash begins as red bumps that become blisters. Often a child can get hundreds of blisters, which crust over and fall off the body in a week or two.

The children who suffered "breakthrough" chickenpox typically got fewer lesions, Frenck said, perhaps 20 to 50. Still, schools and day-care centers would not welcome them back until the sores had dried or crusted, because the disease can spread easily from person to person.

Based on those findings, experts from the U.S. Centers for Disease Control and Prevention and elsewhere are now recommending that a second booster shot be given to children between 4 and 6 years of age.

There is some leeway in that schedule, said Dr. Anne Gershon, a professor of pediatrics at Columbia University College of Physicians and Surgeons, in New York City.

"The booster can be given if [it has been] at least four weeks after the first dose," said Gershon, who is also president-elect of the Infectious Diseases Society of America. Or, it can be given years later, if necessary, she said.

According to the CDC, all children aged 12 months through 12 years old should have two doses of the vaccine. The first dose can be given at 12 to 15 months of age, and the second at 4 to 6 years. Older children, 13 and up, who haven't had the disease in childhood, can be given two doses four to eight weeks apart.

Some adults should consider the vaccine. Ask your health-care provider if you fall into that recommended group, which includes people who have never had the disease.

No vaccine is perfect, experts said.

In 2006, a combination vaccine that included not only chickenpox but measles, mumps, and rubella was licensed, cutting down on the number of shots needed. But that combination vaccine is not currently available in the United States, said Nalini Saligram, a spokeswoman for Merck & Co., which makes it. But it is expected to be back in supply by 2009.

More information

To learn more about chickenpox vaccine, visit the American Academy of Family Physicians.



SOURCES: Anne Gershon, M.D., professor of pediatrics, Columbia University College of Physicians and Surgeons, New York City, and president-elect, Infectious Diseases Society of America; Robert Frenck Jr., M.D., professor of pediatrics in infectious diseases, Cincinnati Children's Hospital, Ohio, and member, American Academy of Pediatrics Committee for Infectious Diseases; Nalini Saligram, spokeswoman, Merck & Co., Whitehouse Station, N.J.; March 15, 2007, New England Journal of Medicine


'/>"/>
Copyright©2008 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Booster vaccination may help with possible future avian influenza pandemic
2. Hydra Booster Energizes Ordinary Drinking Water for Better Absorption and Optimum Hydration, Stopping Symptoms of 'Hidden' Dehydration
3. Parents Should Postpone Child Vaccine Booster: CDC
4. Many Vaccine Booster Shots Unnecessary: Study
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Chickenpox Protection: Get That Booster
(Date:6/28/2017)... (PRWEB) , ... June 28, 2017 , ... Anyone with a remote control has seen ... can do it, you the flipper will get rich in no time. But what ... wrong things can get for the buyer of a flipped house. An email recently ...
(Date:6/28/2017)... Philadelphia, PA (PRWEB) , ... June 28, 2017 ... ... will host a one-day corporate governance program for mid-market executives as a kick-off ... will be held Sunday, Sept. 24, 2017 on the University of Pennsylvania campus, ...
(Date:6/28/2017)... ... 28, 2017 , ... Canadian Zeolite Corp. (the “Company”) (TSX.V: ... study conducted by the University of Saskatchewan in partnership with PotashCorp, Agrium and ... groundwater. As a part of the study, batch adsorption experiments were conducted with ...
(Date:6/28/2017)... ... June 28, 2017 , ... Designers ... to communities in northern Virginia and DC, is announcing a cooperative charity event ... with Alzheimer’s and other disorders that lead to memory impairment. , The Insight ...
(Date:6/27/2017)... (PRWEB) , ... June 27, 2017 , ... ... a cosmetic treatment, according to survey data released today by the American ... Cosmetic Dermatologic Procedures indicates the percentage of consumers considering a cosmetic medical ...
Breaking Medicine News(10 mins):
(Date:6/5/2017)... Kohll,s Pharmacy & Homecare is the first distributor of ... . The Raizer is a simple battery operated mobile ... an almost-standing position within a few minutes. The ... and does not require any extra effort besides a ... can operate it, and lightweight and portable so ...
(Date:6/1/2017)... BELL, Pa. , June 1, 2017 ... (PRN) and Veterinarian Recommended Solutions (VRS), and KD Pharma ... investment in Nutriceutical Holdings by KD Pharma Group. KD ... Holdings with the option to acquire the entire company. ... partner in KD. They are committed to growing the ...
(Date:5/30/2017)... TEL AVIV, Israel , May 30, 2017 /PRNewswire/ ... clinical stage pharmaceutical Company specializing in the development ... management will present a company overview at three ... The 7th Annual LD Micro Invitational: ... Date:                     ...
Breaking Medicine Technology: