It depends which vaccine.

Anti- whooping cough vaccine is left wing, because vaccines are unnatural and poisonous, and you can be healthier by simply avoiding processed foods and cooking and gluten and by detoxing with enemas.

Anti-CoVID vaccine is right wing, because it's a point of freedom to spread deadly disease by all mechanisms available: refuse masks, vaccinations, large gatherings and physical distancing for the same reason you should be anti-BLM, pro-NRA, pro-kleptocrat, pro-coup and anti-peaceful transfer of power as per democracy.