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Bordetella pertussis protein pertactin induces immune response.

Vaccine Weekly

| June 04, 2003 | COPYRIGHT 2003 NewsRX. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan.  All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)Copyright

2003 JUN 4 - (NewsRx.com & NewsRx.net) -- The Bordetella pertussis protein pertactin induced type-specific antibodies.

"Divergence has been found between Bordetella pertussis vaccine strains and circulating strains. Polymorphism in pertactin (Prn) is essentially limited to region 1, which is made up of repeats. Today, the three most prevalent Prn variants are Prn1-3," investigators in Finland and the Netherlands report.

"Vaccine strains produce Prn1, whereas Prn2 is the predominant type found in circulating strains," said Qiushui He and colleagues at the National Public Health Institute in Finland and the National Institute of Public Health and the Environment in the Netherlands. "We investigated how variation in region 1 affects the production of human serum antibodies. Individuals infected by Prn2 strains had significantly fewer antibodies to Prn1 did than those infected by Prn3 strains and those immunized with a booster dose of acellular vaccines containing Prn1. Moreover, in contrast to vaccine recipients and subjects infected by Prn3 strains, individuals infected by Prn2 strains had hardly any antibodies specific to ...

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Source: HighBeam Research, Bordetella pertussis protein pertactin induces immune response.

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