As the global hunt for a Covid-19 shot progresses on an unprecedented speed, anti-vaccine sentiments have also gained steam, prompted by theories that fast-tracked programs are profit-driven, loaded with health risks and will eventually lead to enforced immunisation.
In the United States, Robert F Kennedy Junior, a nephew of former US President John F Kennedy and a fierce critic of Bill Gates, is an outspoken anti-vaxxer.
Remember, the Bill & Melinda Gates Foundation has pledged more than $250 million to the Covid-19 response.
But critics like RFK Jr allege that the Microsoft co-founder stands to profit from a virus vaccine.