A slow spread of adenovirus type 7 infection after its re-emergence in Yamagata, Japan, in 1995.
We have continued the epidemiological study on adenovirus type 7 (Ad7), which re-emerged in 1995 in Yamagata, Japan. Between 1999 and 2004, we isolated only four strains from 10,778 throat swab specimens among children with acute respiratory infections. A serological survey of 303 specimens revealed the antibody-positive rate against Ad7 to be 0-7.4% in children under 10 years of age in 2005, although it was 3.3-16.7% in 1997 and 0% in 1993. Our results suggest that a re-emergence does not always provoke a sudden major outbreak, even if the antibody-positive rate against Ad7 is low in the local community.
Mizuta
Katsumi
K
Department of Microbiology, Yamagata Prefectural Institute of Public Health, Yamagata, Japan. mizutak@pref.yamagata.jp
Abiko
Chieko
C
Aoki
Yoko
Y
Murata
Toshio
T
Katsushima
Noriko
N
Sakamoto
Michiyo
M
Itagaki
Tsutomu
T
Hoshina
Hitoshi
H
Ootani
Katsumi
K
D000257:Adenoviridae Infections / Q000453:epidemiology*; D000260:Adenoviruses, Human; D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D021821:Communicable Diseases, Emerging / Q000453:epidemiology* / Q000821:virology; D005260:Female; D006801:Humans; D007223:Infant; D007564:Japan / Q000453:epidemiology; D008297:Male; D011159:Population Surveillance; D012141:Respiratory Tract Infections / Q000453:epidemiology* / Q000821:virology; D016036:Seroepidemiologic Studies