5 billion children have been immunized against the paralyzing and sometimes deadly poliovirus
The Committee noted that since the declaration that the international spread of polio constituted a Public Health Emergency of International Concern (PHEIC), strong progress has been made by countries toward interruption of wild poliovirus
transmission, implementation of Temporary Recommendations issued by the Director-General, and overall decline in occurrence of international spread of wild poliovirus
This case is not unique, but it's the longest-lasting example of vaccine-derived poliovirus
, researchers report August 27 in PLOS Pathogens.
An alternative test algorithm for poliovirus
isolation and characterization.
In June 2014, the World Health Organisation (WHO) recommended that all international travellers from Pakistan be administered polio drops at airports so as to prevent the proliferation of poliovirus
but no travel ban was imposed.
The meeting presented strategies for the National Emergency Action Plan 2015 aimed at maintaining and increasing population immunity against polio, stopping poliovirus
transmission in all reservoirs and prevent establishment of poliovirus
circulation in rest of the country and sustaining polio interruption through increased immunization coverage.
The three groups include those traveling to polio-endemic or high-risk areas of the world, those working in a laboratory and handling specimens that might contain polioviruses
or those who are healthcare workers treating patients who could have polio or have close contact with a person who could be infected with poliovirus
Most people who get infected with poliovirus
(about 72 out of 100) will not have any visible symptoms.
Lead author Dr Jacob John from Christian Medical College, India said that adding a supplementary IPV dose to children already vaccinated with oral poliovirus
vaccine (OPV) may hasten polio eradication by boosting herd immunity in endemic regions, acted as a booster to prevent international spread by travellers, and minimise the risk of polio outbreaks due to imported wildtype or vaccine-derived polioviruses
There is no indigenous transmission of wild poliovirus
reported in Brazil since 1989.
We last saw the Type II wild poliovirus
in 1999 but now it's been nearly two years since we have seen the Type III polio in Asia and over 18 months since we've seen it in Africa, so we're really tackling one remaining wild poliovirus
, a major development in the last 24 months," Dr Bruce Aylward, Assistant Director-General,WHO informed.
9999% reduction) of the coliform bacterium Klebsiella terrigena, and 4 log reductions of poliovirus
type and rotavirus SA-11.