Fear of potential side effects is the main reason cited by people who are not planning to get vaccinated against Covid-19, according to a public opinion poll published on Wednesday in which more than half of the skeptics said they will “never” get inoculated against the coronavirus.

Carried out by Pulse RC for Skai TV, the survey found that 40% of vaccine skeptics or deniers are concerned about side effects, 19% are reacting to pressure to get inoculated, 16% do not believe the shots to be effective and 11% cited “religious reasons.”

Another 7% claimed not to be concerned about Covid-19, while 5% cited health reasons.