July 31, 2021 07:08 Updated Follow There are no vaccines that cause autism or make it worse. Related articles I’ve heard that other vaccines have caused serious side effects, including autism and other developmental disorders. Could this vaccine cause any serious side effects? Do the COVID-19 vaccines affect fertility (whether someone can have children)? I already tested positive for COVID-19. Do I still need to get vaccinated? Can you get the Pfizer vaccine for the first shot and the Moderna vaccine for the second shot? Will consent to get the vaccine (shot) happen during the sign-up process or on-site?