People all over the world lost confidence in the importance of routine childhood vaccines against killer diseases such as measles and polio during the COVID-19 pandemic, a new UNICEF report says.
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The public perception of vaccines for children declined between 2019 and 2021 in 52 of the 55 countries surveyed, the United Nations Children's Fund (UNICEF) said.
The data was a "worrying warning signal" of rising vaccine hesitancy amid misinformation, dwindling trust in governments and political polarisation, UNICEF, the UN agency said.
"We cannot allow confidence in routine immunisations to become another victim of the pandemic," UNICEF executive director Catherine Russell said in a statement.
"Otherwise, the next wave of deaths could be of more children with measles, diphtheria or other preventable diseases."
The change in perception was particularly worrying, the agency said, as it comes after the largest sustained backslide in childhood immunisation in a generation during COVID-19 disruptions.
In total, 67 million children missed out on one or more potentially lifesaving vaccines during the pandemic, and efforts to catch up have so far stalled despite increasing outbreaks.
The picture of vaccine confidence varied globally, according to the UNICEF report, its flagship annual State of the World's Children.
In countries including Papua New Guinea and South Korea, agreement with the statement "vaccines are important for children" declined by 44 per cent and by more than a third in Ghana, Senegal and Japan.
In the United States, it declined by 13.6 percentage points.
In India, China and Mexico, confidence remained broadly the same or increased, the report said.
The report stressed vaccine confidence can easily shift and the results might not indicate a long-term trend.
Despite the fall in confidence, more than 80 per cent of respondents in almost half of the countries surveyed still said childhood vaccines were important.
The data was collected by the Vaccine Confidence Project at the London School of Hygiene and Tropical Medicine.
Australian Associated Press
