Can you catch hiv/aids from giving mouth to mouth to a stranger how has a heart attack?

No.: Hiv is not transmitted by kissing or rescue breathing. Unless of course, both persons happen to have open wounds actively bleeding in their mouths at the same time. Several other diseases are transmitted more easily than hiv, like the flu and mono, but often treatable or vaccine-preventable. If concerned, you can buy and carry pocket-sized barriers for rescue breathing.

Unlikely: Hiv is primarily transmitted from blood or sexual contact. It is not present in saliva. However, in the rare instance when the recipient and provider of CPR have open mouth or lip sores, there is a possibility of transmission. The american heart association now recommends chest compression CPR for bystanders. Take a CPR class for the latest techniques.