Af upplýsingavef um blóðgjafir:
“Other possible infections: Diseases caused by certain bacteria, viruses, and parasites, such as babesiosis, Chagas disease, malaria, Lyme disease, and others can also be spread by blood product transfusions. But because potential donors are screened with questions about their health status and travel, such cases are very rare.”
http://www.cancer.org/docroot/ETO/content/ETO_1_4x_Possible_Risks_of_Blood_Product_Transfusions.aspSemsagt, nær allar bakteríu og veirusýkingar og sjúkdómar af völdum snýkjudýra í blóði (ss. malaría). Þeir athuga aðeins HIV, lifrarbólgu B og C og sárasótt.