What blood type do mosquitoes avoid?

There is no specific blood type that mosquitoes avoid. Mosquitoes are attracted to a combination of factors, including carbon dioxide (CO2), lactic acid, body heat, moisture, and other chemicals present in sweat. These cues are present in all people, regardless of their blood type, so mosquitoes do not discriminate based on blood type. However, individual factors, such as the use of mosquito repellent or wearing protective clothing, can make someone less attractive to mosquitoes and reduce the likelihood of being bitten.