Poliovirus discovered in Brazilian sewage, WHO reports

Brazilian health officers have discovered the polio virus in sewage in the World Cup host city of Campinas, the World Health Organization announced Monday.

Wild poliovirus type 1, or WPV1, was discovered during a routine health check at the city's Viracopos International Airport and reported to the WHO on June 18, officials said.

To date there has been no evidence of transmission, nor has there been a case of paralytic polio reported.

"The World Health Organization assesses the risk of further international spread of this from Brazil is very low," the announcement said.

Campinas has been serving as base camp for the Portuguese and Nigerian teams during the World Cup soccer tournament. It's roughly 60 miles from Brazil's most populous city, Sao Paulo.

WHO officials said the polio vaccination rate in the city and the state of Sao Paolo has been greater than 95 percent, and was one of the reasons they assessed that the risk was low. The virus was found only in airport sewage.

Health officials are continuing to investigate the episode and are increasing surveillance activity. The case has been described as one of poliovirus importation. When the virus was genetically sequenced, it was found to closely match a strain recently detected in Equatorial Guinea, officials said.

Polio, or poliomyelitis, mainly affects children under age 5. It occurs when the virus enters the mouth or nose and reproduces in the gut. Eventually, the virus enters the blood stream and then attacks the nervous system.

One in 200 infections will lead to paralysis, according to the WHO.

not rated yet
add to favorites email to friend print save as pdf

Related Stories

WHO starts emergency polio talks

Apr 28, 2014

The World Health Organization announced on Monday that it had convened emergency talks amid rising concern over polio after cases were discovered in Afghanistan, Iraq and Equatorial Guinea.

Polio virus found in Egypt linked to Pakistan

Jan 21, 2013

Pakistani health officials Monday called for infants leaving the country to be issued polio vaccinations at airports after virus samples linked to a southern Pakistani city were discovered in Egypt.

WHO declares polio 'public health emergency' (Update)

May 05, 2014

The World Health Organization warned Monday that polio has reemerged as a public health emergency, after new cases of the crippling disease began surfacing and spreading across borders from countries like ...

Polio cases in Pakistan pass 2012 total

Nov 13, 2013

Polio is on the rise in Pakistan, health officials said Wednesday, as the number of infections in 2013 passed the total for the whole of 2012.

Recommended for you

Flu season off to a slow start ... for now

2 hours ago

(HealthDay)—This year's flu season is off to a slow but detectable start. And it appears to be a typical one that's likely to peak in January or February, a leading U.S. health official says.

Update on new treatments for liver diseases

3 hours ago

Cirrhosis and nonalcoholic fatty liver disease (NAFLD) are two serious liver conditions with limited pharmacological treatments. The December issues of AGA's journals—Clinical Gastroenterology and Hepatology and Gastro ...

Amateur photographers aid in remote skin sore trial

4 hours ago

Paediatric infectious disease specialists are bringing novel skin sore research methods to WA in the form of a protocol allowing non-professional photographers to capture high-quality images of skin sores ...

WHO confirms DR Congo Ebola-free status

4 hours ago

The World Health Organization confirmed Friday that the Democratic Republic of Congo was Ebola-free, as 42 days had passed since the last case in an outbreak that killed at least 49 people.

User comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.