Thanks for sharing the WHO-UNICEF 2020 WUENIC Immunization Coverage Estimates.
We too experienced the same in the catchment area of attached Primary Health Centers [PHCs]. This is mainly attributable to unavoidable restriction on movement of the caretakers to bring their children to vaccination centers as a result of recurrent Lockdowns to mitigate the spikes of COVID-19 pandemicity, suspension of outreach activities for a considerable period [for one month will pull down ~8% of FIC as they cross 1st birthday], prioritization of public health activity and the like.
Lack of simple easily sustainable model (e.g. Extended Immunogram-as evidenced by "MISS Sampaje") at least in the areas covered by planning units [Primary Health Centers] is another major handicap.
Even if pandemic ends, conspicuous absence of this simple sustainable model through which any planning unit can attain and sustain ≥95% FIC below one year and complete vaccination including 1st booster retards the acceleration of coverage, requiring another 5 years or more to cross 85% which can be otherwise attained within just 4 to 6 months as demonstrated by RHTC Sampaje in 2013, Planning Units Guthigar, Kollamogru in 2015 etc.
Dr Holla n Team
Prof n Head
Department of community Medicine