HIV is unable to reproduce outside its living host (unlike many bacteria or fungi, which may do so under suitable conditions), except under laboratory conditions; therefore, it does not spread or maintain infectiousness outside its host.
You're welcome my friend.
Happens all the time,I was at maccas the other day & this guy was bleeding from a small cut at least this lady had a bandaid on--no risk.By the way,you know how many chefs cut themselves before preparing our meals & some must have blood bourne viruses but this isn't a risk because the air would render the virus inactive before we got stuck into our food.Don't worry,even if your burrito had a bit of blood on it there is no risk.I have heard worse stories then blood but we won't go into that now.You're safe.All the best.