A girl receives polio vaccine drops at a government dispensary in a Karachi slum, Pakistan in this October 21, 2014 file photo. REUTERS/Akhtar Soomro
Your feedback is important to us!
We invite all our readers to share with us their views and comments about this article.
Disclaimer: Comments submitted by third parties on this site are the sole responsibility of the individual(s) whose content is submitted. The Daily Star accepts no responsibility for the content of comment(s), including, without limitation, any error, omission or inaccuracy therein. Please note that your email address will NOT appear on the site.
Alert: If you are facing problems with posting comments, please note that you must verify your email with Disqus prior to posting a comment. follow this link to make sure your account meets the requirements. (http://bit.ly/vDisqus)
In a huge immunization effort in 150 countries, health teams Sunday launched what they hope will be the final push against polio.First, however, the vaccine that has successfully fought polio for more than 30 years needs to be switched for one that targets the last few areas of risk.For the endgame in polio to succeed, a coordinated and complex vaccine switch is crucial.Until now, many countries have been using a shot that protects against the three types of wild polio virus – type 1, type 2 and type 3 – but type 2 polio transmission has been stopped since 1999, meaning immunizing against it now makes no sense. In rare cases it also poses a risk that the weakened type 2 virus in the vaccine can seep into circulation and cause "vaccine-derived" polio infections.While there has been a 99 percent reduction in cases worldwide since the GPEI launch, fighting the last 1 percent of polio has been far tougher than expected.In 2011, a polio virus from Pakistan reinfected China, which had been polio free for more than a decade.
FOLLOW THIS ARTICLE