نتایج جستجو برای: polioviruses
تعداد نتایج: 548 فیلتر نتایج به سال:
Abstract Since May 2019, the Central African Republic has experienced a poliomyelitis outbreak caused by type 2 vaccine-derived polioviruses (VDPV-2s). The affected Bangui, capital city, and 10 districts across country. resulted from several independent emergence events of VDPV-2s featuring recombinant genomes with complex mosaic genomes. low number mutations (<20) in viral capsid protein 1–enc...
Since the 1988 World Health Assembly resolution to eradicate poliomyelitis, transmission of the three types of wild poliovirus (WPV) has been sharply reduced (1). WPV type 2 (WPV2) has not been detected since 1999 and was declared eradicated in September 2015. Because WPV type 3 has not been detected since November 2012, WPV type 1 (WPV1) is likely the only WPV that remains in circulation (1). ...
3 E Programme on Immunization. EPI continued to see significant progress in the Western Pacific Region over the past year. There were important gains in maternal and neonatal tetanus elimination, with Viet Nam achieving elimination status in 2005. In addition, the Region continues to be free of poliomyelitis. The decision taken at the fifty-sixth session of the Regional Committee for the Wester...
BACKGROUND Cases of paralysis caused by poliovirus have decreased by >99% since the 1988 World Health Assembly's resolution to eradicate polio. The World Health Organization identified environmental surveillance (ES) of poliovirus in the poliomyelitis eradication strategic plan as an activity that can complement acute flaccid paralysis (AFP) surveillance. This article summarizes key public heal...
The Australian National Poliovirus Reference Laboratory was established in late 1994, as part of Australia’s commitment to the World Health Organization’s (WHO) polio eradication program. The laboratory continues to play a pivotal role in maintaining Australia’s polio-free status through surveillance for cases of acute fl accid paralysis (AFP), the main clinical presentation of poliomyelitis, a...
Acute flaccid paralysis is the main clinical manifestation of poliomyelitis. Faecal specimens from cases of acute flaccid paralysis in Australia are referred to the National Poliovirus Reference Laboratory for virus culture to determine if poliovirus is the causative agent. Isolations of poliovirus are tested to determine whether they have characteristics of the Sabin oral polio vaccine virus s...
INTRODUCTION Global poliomyelitis eradication initiative relies on (i) laboratory based surveillance of acute flaccid surveillance (AFP) to monitor the circulation of wild poliovirus in a population, and (ii) vaccination to prevent its diffusion. However, as poliovirus can survive in the environment namely in sewage, environmental surveillance (ES) is of growing importance as the eradication ta...
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