It is VERY unlikely that it is an allergic reaction. Allergic reactions occur when you are exposed to an allergen. Symptoms progress fairly rapidly. Unfortunately a staph infection IS very likely. It may be from the tetanus shot, staph lives on the skin and could pass when the needle broke...
Adapting Group Sequential Methods to Observational Postlicensure Vaccine Safety Surveillance: Results of a Pentavalent Combination DTaP-IPV-Hib Vaccine Saf... toxoids and acellular pertussis adsorbed (DTaP), inactivated poliovirus (IPV), and Haemophilus influenzae type b (Hib) conjugate vaccine (DTaP-IP...
Vaccination is an essential public health measure that helps to reduce the burden of infectious diseases in children. Although vaccines have an excellent safety record and the association of severe allergic reactions is rare, public concerns about vaccine safety can lead to incomplete vaccination coverag...