False. Alcohol can affect different people in different manners. Our brains, as well as the chemical balances in our bodies, can be different than one another's and therefore can have different affects on different people neurologically, psychologically, and even physically.
Defiantly flu shots, recommend over the counter drugs, and monthly medicine
Yes, it can so when a pathogen invade into your body the first thing it will do is the call the b-cell to try to take it down if the b-cell failed it activate the t-cell to try to attack the pathogen if the t-cell faild it called to the killer t-cell. What the killer t-cell do is try to copy the pathogen then give it to the antibodies