Blood samples (n = 66) collected from free-ranging lions Panthera leo in Etosha National Park were examined for the presence of Feline Immunodeficiency Virus (FIV). None of the lions tested was positive. Furthermore, these animals were also tested for the presence of antibodies to feline corona, herpes, calici, panleukopenia viruses and toxoplasma. Only 67% were positive for herpes virus antibodies and 98% were positive for the presence of antibodies to toxoplasma. Bloedmonsters (n = 66) van vrylewende leeus Panthera leo in Etosha Nasionale Park is vir die teenwoordigheid van kat immuniteitsgebrek virus (Feline Immunodeficiency Virus) getoets. AI die leeus was negatief vir teenliggaampies teen die virus. Verder is die diere ook vir die teenwoordigheid van teenliggaampies teen kat corona, herpes, calici, panleukopenievirusse en toksoplasma getoets. Net 67% was positief vir herpesvirus teenliggaampies en 98% was positief vir die teenwoordigheid van teenliggaampies teen toksoplasma.