A WHO officer conducting house-to-house monitoring in Kaundhiyara village in Prayagraj district to monitor the vaccination status of children under 5 years and report adverse events following immunization, if any. WHO field teams monitored 748 310 children vaccinated in 78 027 routine immunization sessions between January and May 2024 in Uttar Pradesh. (Photo: Ritesh Sharma / ©WHO India)

A WHO field officer conducting a house-to house-survey in the Tadiyawan block of Hardoi district during the Sanchari Rog Niyantran Abhiyan (communicable disease control campaign) in Uttar Pradesh. In April 2024, WHO teams covered 78 380 houses in 15 693 villages to assess the quality of the campaign in Uttar Pradesh. (Photo: Manoj Agnihotri / © WHO India)

WHO teams conducting acute flaccid paralysis (AFP) case verification to rule out polio in Myorpur village in Sonbhadra district. AFP surveillance, supplemented by environmental surveillance of sewage samples, is critical to ensure India remains polio free. (Photo: Mohd. Aleem Ansari / © WHO India)

A WHO officer is conducting acute flaccid paralysis (AFP) case clinical examination to rule out polio in the Chakia block of Chandaul district in Uttar Pradesh. WHO investigated 3,791 AFP cases reported between January and May 2024 in Uttar Pradesh and found high compliance to investigation and stool collection protocols. WHO conducts environmental surveillance at 13 sites for sewage sampling in 9 districts of Uttar Pradesh (Photo: Ajit Kumar Rao / © WHO India)