Journal List > Korean J Pediatr Gastroenterol Nutr > v.6(2) > 1110368

Korean J Pediatr Gastroenterol Nutr. 2003 Sep;6(2):120-128. Korean.
Published online Sep 30, 2003.
Copyright © 2003 The Korean Society of Pediatric Gastroenterology, Hepatology and Nutrition
Influence of Climate Factors and PM10 on Rotaviral Infection: A Seasonal Variation Study
Hae Ra Im, In Sang Jeon, Hann Tchah, Jeong Soo Im,* Eell Ryoo, Yong Han Sun, Kang Ho Cho, Ho Joon Im, Gwang Hoon Lee, Hak Soo Lee, Yune Jeung Kang and Yign Noh
Department of Pediatrics, Gachon Medical School, Ghil Medical Center, Incheon, Korea.
*Department of Preventive Medicine, Gachon Medical School, Ghil Medical Center, Incheon, Korea.
Department of Atmospheric Sciences, Yonsei University, Seoul, Korea.


Recently, while the authors were experiencing that the epidemic period of rotaviral infection happened more in the early spring, we tried to find out how the outbreaks of rotaviral infection are changing in detail depending on the weather condition since it has something to do with the climate factors and PM10.


Fourteen hundreds seventy nine patients who were proved to be positive to rotavirus were chosen among children less than 5 years old from January 1995 to June 2003. Among various climate factors, monthly average temperature, humidity, rainfall and PM10 were selected.


Rotaviral infection was most active in 2002 as 309 (20.9%) patients. It has been the spring that is the most active period of rotaviral infection since 2000. The temperature (RR=0.9423, CI=0.933424~0.951163), rainfall (RR=1.0024, CI=1.001523~1.003228) and PM10 (RR=1.0123, CI=1.009385~1.015248) were significantly associated with the monthly distribution of rotaviral infection.


Through this study we determined that the epidemic period of rotaviral infection is changed to spring, which is different from the usual seasonal periods such as late fall or winter as reported in previous articles. As increased PM10 which could give serious influence to the human body, and changing pattern of climate factors such as monthly average temperature and rainfall have something to do with the rotaviral infection, we suppose that further study concerning this result is required in the aspects of epidemiology, biology and atmospheric science.

Keywords: Rotavirus; Climate factors; PM10; Seasonal prevalence; Epidemic