But statistic modelling shows that number could potentially be more than five times higher, according to UNICEF statistics specialist Claudia Cappa, who co-authored the report.
The urgency stems from more than mere fairness: wherever the virus continues to circulate it could give rise to more contagious or more deadly variants that could wipe out any progress toward immunity.
Experts believe more and more migrants are choosing to travel with their families, including young children and pregnant women, to avoid being deported to the different countries they pass through.
UNICEF, a UN agency responsible for distributing vaccines through the global COVAX programme, it expects deliveries of the vaccines to be delayed this month and next.
We understand that deliveries of COVID-19 vaccines to lower-income economies participating in the COVAX Facility will likely face delays following a setback in securing export licenses for further doses of COVID-19 vaccines produced by the Serum Institute of India (SII), expected to be shipped in March and April.
EU lawmaker Peter Liese, from the same party as German Chancellor Angela Merkel, said the report left him speechless, and he urged AstraZeneca to clarify the situation.
In Bangladesh and Nepal, for example, the number of young children being treated for severe acute malnutrition (SAM) fell by over 80 per cent, while child vaccinations fell sharply in India and Pakistan.
Faced with such "devastating" effects, Fore urged for children to be placed "at the heart of recovery efforts," particularly by "prioritizing schools in reopening plans."
UNICEF, the world's single largest vaccine buyer, is part of the World Health Organization-backed COVAX programme to supply COVID-19 shots to emerging economies.
We have been asking the world for more funding ... for UNICEF and our distribution to countries we still need about $1 billion.
Fore called for countries to reopen schools, implement legal reforms, ensure access to health and social services while providing measures to protect families.
COVAX is co-led by the WHO, the GAVI vaccines alliance, the Coalition for Epidemic Preparedness Innovations (CEPI) and the United Nations children's fund UNICEF.