That i did not know thanks i guess?
Answer:
Because providing first aid is an half to half situation were if the person who provides the assistance do properly of if it is successful then is Fine/Good but when thats person go wrong on proving first aid, it might damage or hurt the person who you treating so maybe it is going to ruin your name and reputation
People can get a redness or swelling from where they got the shot, and symptoms include a fever, headache, nausea and muscle aches.
People also do not get the flu from a flu vaccination.