Statistical analysis of attack rate in norovirus foodborne outbreaks

被引：45

作者：

Noda, Mamoru ^{[1
]}

Fukuda, Shinji ^{[2
]}

Nishio, Osamu ^{[3
]}

机构：

[1] Natl Inst Hlth Sci, Div Biomed Food Res, Tokyo 1585801, Japan

[2] Hiroshima Prefectural Inst Sci & Technol, Ctr Publ Hlth & Environm, Minami Ku, Hiroshima 7340007, Japan

[3] Natl Inst Infect Dis, Musashimurayama City, Tokyo 2080011, Japan

来源：

INTERNATIONAL JOURNAL OF FOOD MICROBIOLOGY | 2008年 / 122卷 / 1-2期

关键词：

attack rate; foodborne outbreaks; food handler; GII/4; norovirus; oyster; statistical;

D O I：

10.1016/j.ijfoodmicro.2007.11.073

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

Norovirus (NoV), which causes foodborne gastroenteritis Outbreaks, is one of the important viruses in public health. We statistically analyzed the attack rate in foodborne outbreaks caused by NoV. The attack rate in 95 oyster-associated Outbreaks was significantly higher than that in 195 food handler-associated outbreaks (P=0.007). The difference in the number of NoV genotypes implicated is considered to be an important factor for this difference. The attack rate in 20 Outbreaks associated only with GII/3 was higher than that in 143 other outbreaks (P=0.247), while the attack rate in 27 outbreaks associated only with GII/4 was lower than that in 136 other Outbreaks (P=0.004), suggesting that GII/4 NoVs Cause asymptomatic infection more frequently than do other NoV genotypes. Our results suggest that differences in implicated foods, susceptibility of the host to NoV infection, and pathogenicity of NoVs may influence the attack rate in NoV foodborne outbreaks. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：216 / 220

页数：5

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