hello, inhale cocaine last year over the year to January 1 was the last time, sometimes shared the ticket to inhale, at 2 months and 2 weeks I have sore throat, as I scraped and mucus, I realize 2 fourth generation ELISAs after 45 days and 2 months, both negative thank God, how safe is this? may be that I have symptoms of acute infection? how likely is infected with HIV by sharing joint to snorting cocaine?