To mazal77,
You are correct about immunity, but you need to be exposed to the antigen first. You can be exposed by either getting sick or by getting a shot. I prefer the shot it usually doesn’t make you feel sick or cause death. Also with regards to this swine flu,
it can be different than the regular flu. So far bli ayin horah, it’s acting like a regular flu or even milder; not too many deaths. But in 1918 this strain -H1N1, called at that time the Spanish flu, mutated and turned very deadly. This is why a lot of people are hyping this up -they are afraid of some sort of deadly mutation. We really don’t have anything to fight the flu with- the meds (tamiflu & others) don’t work to well. The best protection we have against the flu is vaccination. Two reasons a shot will help in this case. 1. The less people that get sick- the less of a chance the virus has of mutating. 2. Even if it mutates, the shot will probably give you some immunity, so you probably won’t die chas v’sholom from this deadly strain. I hope this clears some stuff up for you.