Since there had been the first human outbreak of novel influenza A/H1N1 in Mexico, it has become pandemic throughout the world. In the Republic of Korea, the first human case was on May, 2009 and National Veterinary Research and Quarantine Service (NVRQS) has started monitoring novel influenza A/H1N1 on domestic swine farms. The first positive case was detected on 14, Dec, 2009 and until now, we have had total 17 positive cases. From the first case, we did epidemiological investigation on introduction and transmission of virus to pigs. We have concluded that virus had been introduced from humans to pigs, possibly from October to November, 2009 in our country. There were direct and indirect factors including the vehicles transporting veterinary medicine, feed, etc. related to transmission of virus from farm to farm. However, breeding pigs seem to be extrinsic to transmitting factors. Upon the epidemiological investigation, the off-limits of visitors to farms and the disinfection is thought to be critical for blocking the introduction and transmission of novel influenza A/H1N1. In addition, collecting and analyzing the genetic informations of influenza virus is important for predicting and handling the new pandemic influenza in the future.

ABSTRACT
 서 론
 재료 및 방법
 결 과
  1. 국내 돼지 농장 신종 플루 발생의 역학적 특징
  2. 사람 신종 인플루엔자 발생과 돼지 신종 인플루엔자발생의 역학적 인과관계 분석
  3. 돼지 신종 플루 발생 전파 요인별 역학 분석
  4. 감염시기(timeline)에 대한 역학적 의미
  5. 돼지 사육 시스템과 돼지 신종 인플루엔자 전파간의인과관계 분석
 고 찰
 결 론
 참고문헌

• 이상진(국립수의과학검역원) | Sang-Jin Lee (National Veterinary Research and Quarantine Service) Correspondence
• 김연주(국립수의과학검역원) | Youn-Ju Kim (National Veterinary Research and Quarantine Service)
• 박최규(국립수의과학검역원) | Choi-Kyu Park (National Veterinary Research and Quarantine Service)
• 장우석(국립수의과학검역원) | Woo-Suk Jang (National Veterinary Research and Quarantine Service)