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Jpn J Infect Dis. 2016 May 20;69(3):221-3. doi: 10.7883/yoken.JJID.2015.162. Epub 2015 Aug 7.

Persistence of Immunity Acquired after a Single Dose of Rubella Vaccine in Japan.

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1
Okafuji Pediatric Clinic.

Abstract

To date, Takahashi, Matsuura, and TO-336 strains of live-attenuated rubella vaccine have been used in Japan. Japan implemented a single-dose rubella vaccination program until 2006. However, few reports are available on the persistence of immunity after this vaccination program. We collected 276 serum samples from January 2009 to December 2011 at Okafuji Pediatric Clinic and assessed the immune status of these samples against rubella virus during 1-10 years after vaccination with a single dose of Takahashi rubella vaccine. Regional outbreak of rubella did not occur during 1999-2011. The collected serum samples were tested for antibodies against the rubella virus by performing a standard hemagglutination inhibition (HAI) test. Our results showed that all the tested serum samples contained antibodies against the rubella virus 10 years after the vaccination. Geometric mean titer of HAI antibodies was 1:180 and decreased to 1:68 at 10 years after the vaccination. The levels of HAI antibodies decreased logarithmically with time after the vaccination. In conclusion, vaccine-acquired immunity after vaccination with a single dose of live-attenuated Takahashi rubella vaccine was retained for at least 10 years when rubella was under regional control.

PMID:
26255735
DOI:
10.7883/yoken.JJID.2015.162
[Indexed for MEDLINE]
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