Research Project
Grant-in-Aid for Young Scientists (B)
The latest rubella outbreak peaked in 2013 and was notable in that 14,344 rubella and 45 congenital rubella syndrome (CRS) cases were reported although the populational immunity represented by hemmaglutination inhibition (HI) titer was above the protective threshold. The genotype 2B rubella virus (RV) strains were responsible for the outbreak. We established a high throughput assay to measure the neutralization antibody(NA) titer and assessed the NA prevalence rate (n=101) against clinical isolates using human sera. Individuals with protective IgG titer represented 88.1% of the population. Consistently, 85.2% of the population had protective NA titers against the vaccine strain. In contrast, 50.5% of the population had protective NA titers against genotype 2B strains. The humoral immunity does not exhibit full cross reactivity to circulating strains. Our data suggest the humoral populational immunity has been over-estimated by not measuring antibody titers toward circulating strains.
All 2017 2016 2015 2014 Other
All Journal Article (13 results) (of which Int'l Joint Research: 1 results, Peer Reviewed: 13 results, Open Access: 12 results, Acknowledgement Compliant: 1 results) Presentation (24 results) Book (11 results) Remarks (6 results)
Proc Natl Acad Sci U S A
Volume: 114 Issue: 10 Pages: 2681-2686
10.1073/pnas.1621508114
Journal of clinical virology
Volume: 80 Pages: 98-101
10.1016/j.jcv.2016.05.005
大阪市立環境科学研究所所報
Volume: 78 Pages: 1-6
Volume: 78 Pages: 13-20
Volume: 78 Pages: 7-12
American Journal of Infection Control
Volume: 43 Issue: 6 Pages: 653-655
10.1016/j.ajic.2015.02.022
食品衛生研究
Volume: 65 Pages: 7-15
Volume: 77 Pages: 13-16
大阪府立公衆衛生研究所所報
Volume: 53 Pages: 15-21
110010040499
The American Journal of Medicine
Volume: 127 Issue: 4 Pages: 3-4
10.1016/j.amjmed.2013.10.015
Am J Med
Volume: 127 Issue: 8 Pages: 19-19
10.1016/j.amjmed.2014.04.027
Cancer Science
Volume: 105 Issue: 2 Pages: 211-218
10.1111/cas.12324
J Infect Dis
Volume: 211 Issue: 6 Pages: 879-888
10.1093/infdis/jiu496
http://www.iph.pref.osaka.jp/kansen/zbs/zfs.html
http://www.iph.pref.osaka.jp/merumaga/back/157-1.html
http://www.iph.pref.osaka.jp/news/vol60/news60.pdf
http://www.iph.pref.osaka.jp/merumaga/back/131-2.html