Conspiracy theories and misinformation fuel mistrust in vaccines and could push levels that potential Covid-19 vaccines are taken in the United States and Britain below the rates needed to protect communities against the disease, a study found on Thursday.
The study of 8,000 people in the two countries found that fewer people would “definitely” take a Covid-19 vaccine than the 55 per cent of the population scientists estimate is needed to provide so-called “herd immunity”.