Guatemala implemented wastewater-based poliovirus surveillance in 2018, and three
genetically unrelated vaccine-derived polioviruses (VDPVs) were detected in 2019. The …

Polio cases can be missed by acute flaccid paralysis (AFP) case surveillance alone,
emphasizing the importance of environmental surveillance (ES). In this study, to investigate …

Severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) is shed in the stool of
infected individuals and can be detected in sewage and wastewater contaminated with …

To provide a basis for further optimization of the polio sequential immunization schedule,
this study evaluated the effectiveness of booster immunization with one dose of bivalent oral …

The success of the global polio eradication initiative is threatened by the genetic instability of
the oral polio vaccine, which can result in the emergence of pathogenic vaccine-derived …

The Global Polio Eradication Initiative was adopted by Ghana in 1996, and through robust
AFP surveillance was able to interrupt the circulation of wild poliovirus in 2008. However, the …

Due to the possibility of wild poliovirus importation from endemic regions and the high
circulation of vaccine-derived poliovirus type 2 in the African region, Mozambique …

Abstract Background and Aim Poliovirus is a global health issue that affects children in
different parts of the world. Despite the efforts of national, international, and …

Methods we conducted a retrospective review of AFP surveillance performance indicators in
Nigeria for 2010-2019. We also reviewed data in reports from four groups of surveillance …

Viral infections, ranging from the common cold to severe illnesses like HIV/AIDS, Ebola, and
SARS-CoV-2, are a major public health concern. The Noguchi Memorial Institute for Medical …