title: Decreasing any viral infectivity in blood-smears for malarial parasite examination.
mesh_terms: D001800:Blood Specimen Collection / Q000379:methods*; D006801:Humans; D007836:Lassa virus / Q000472:pathogenicity; D008288:Malaria / Q000469:parasitology*; D029024:Marburgvirus / Q000472:pathogenicity