During 2018-2024, there were 3,955 cases of cVDPV polio globally, averaging 565 cases per year. As on September 17, 2025, 143 cVDPV cases have been reported this year. In 2023, five polio cases in east Afghanistan were in children who had received 16 to 28 OPV doses.
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At a time when 99 polio cases were reported in Pakistan and Afghanistan last year and 18 cases as of July 15, 2025, and 297 circulating vaccine-derived poliovirus type 2 (cVDPV2) cases were reported last year, with the majority of them being from six countries, the decision to wind down the polio surveillance programme in India would undo the hard-gained achievement
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Besides wild poliovirus cases, the WHO registry has data of only the circulating VDPV cases and not the cases that belong
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Despite knowing the results of the case on August 12, and the follow-up results of the child’s immunological profile and
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On August 12, the ICMR-NIV Mumbai unit confirmed and reported that the polio case detected in Meghalaya was a type
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The long delay in confirming these crucial details is intriguing as samples from the child were sent to the ICMR-NIV
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The ambitious goal of eradicating wild-type poliovirus type-1 (WPV1) by 2026 appears to have become tougher; the target year was
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As long as wild poliovirus is present and any country continues to use the oral vaccine, the risk of polio emergence is real in a globalised village
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Switching from trivalent to bivalent OPV vaccine and introducing one dose of IPV was supposed to eliminate all type 2 vaccine-derived poliovirus cases, but such cases only increased sharply
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Since 1988, when the World Health Assembly established the Global Polio Eradication Initiative (GPEI), wild poliovirus subtype-2 and subtype-3 have
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All previous influenza pandemics — 1918 Spanish flu, 1957 Asian flu, 1968 Hong Kong influenza, and 2009 H1N1 — came
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Researchers have found that sewage surveillance can help in understanding the circulation of novel coronavirus (SARS-CoV-2) in the community. Sewage
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With the continued risk of international spread, WHO has announced that polio will remain a public health emergency for three
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