ロタウイルスワクチンの効果は・・・
2014-07-04
６月９日に米国小児科学会雑誌に、ロタウイルスワクチン接種により、重度のロタウイルス下痢症による小児の入院件数が激減したという、米国疾病対策センター（CDC）の研究論文が載りました。
同研究では、米国でロタウイルスワクチンが定期接種として導入されたあと、５歳未満の小児（特に１歳児）のロタウイルス関連の入院件数および全ての下痢による入院件数が９４％減少し、救急および外来の件数も大幅に減少したと紹介しています。また、未接種小児の入院件数も減少しており、ワクチン導入による間接的予防効果も紹介してました。
米国はロタウイルスワクチンは定期接種ですが、日本はまだまだそうはいかないようです。でも、ワクチンの効果が証明されたことで、たくさんの子ども達に接種してもらいたいと思います。
Rotavirus Vaccine Prevents 1.5 Million Health Care Visits Since 2006
6/9/2014
For Release: June 9, 2014
Rotavirus vaccines have reduced the number of children hospitalized for severe rotavirus-associated diarrhea by as much as 94 percent in some years, according to research by the Centers for Disease Control and Prevention. The study, “Rotavirus Vaccines and Health Care Utilization forDiarrhea in the United States (2007-2011), in the July 2014 Pediatrics (published online June 9), analyzed hospital data around diarrhea illnesses both before and after rotavirus vaccine was first recommended in 2006. Rotavirus-associated hospitalizations and all diarrhea hospitalizations were substantially lower for children younger than 5 years old from 2007 to 2011, especially among 1-year-olds. During 2009-2011 there was also a significant reduction in emergency department and outpatient visits. In the 2009-2010 rotavirus season, rates of rotavirus-related hospitalizations declined by 94 percent compared with pre-vaccine rates. Unvaccinated children also had lower rates of hospitalization in the post-vaccine years, due to indirect benefits of vaccination. Overall, during 2007 to 2011, the study authors estimate rotavirus vaccination reduced diarrhea-related health care visits by 1.5 million visits, for a savings of $924 million in the U.S. Study authors conclude rotavirus vaccination has resulted in a substantial and sustained decline in diarrhea-associated health care use and related costs.
– See more at: http://www.aap.org/en-us/about-the-aap/aap-press-room/Pages/Rotavirus-Vaccine-Prevents-1-5-Million-Health-Care-Visits-Since-2006.aspx#sthash.V9EfEZWX.dpuf
