En 200 sueros de pequeños rumiantes del Zoológico Nacional del Parque Metropolitano de Santiago, se estudió la infección causada por virus influenza y parainfluenza-3 mediante la prueba de inhibición de la hemoaglutinación. Las especies muestradas fue­ron 19 cabras anglo-nubian (Capra hircus), 32 cier­vos dama blanco (Dama dama var. albina), 10 ciervos dama negro (Dama dama var. melánica), 25 llamas (Lama glama), 30 muflones corso (Ovis musimon), 30 ovejas karakul (Ovis aries) y 54 ovejas somalí (Ovis aries steatopigas). Como antí­geno se utilizaron los virus parainfluenza-3 (cepas bovina y humana), influenza equina (H7N7) e in­fluenza humana A/Santiago/725/81 (H3N2) y A/Santiago/743/83 (H1 N1) .Todos los sueros resultaron negativos frente a los virus parainfluenza-3 e influenza equina (H7N7). Con el virus influenza humana se evidenciaron dos llamas positivas frente a la cepa H1 N1 y 17 ovejas somalí, dos muflones corso y dos ovejas karakul frente a la cepa H3N2.AbstractA serological survey of influenza and parainfluenza-3 viruses was done in 200 serum samples from small ruminants of the National Zoo of the Metropolitan Park of Santiago Chile. Nineteen anglo-nubian goats (Capra-hircus), 32 white deers (Dama dama var. albina), 10 black deers (Dama dama var. melanica), 25 llamas (Lama glama), 30 corsican rams (Ovis musimon), 30 karakul sheep (Ovis aries) and 54 somalian sheep (Ovis aries steatopigas) were sampled.Serum samples were analized through haemagglutination inhibition test with parainfluenza uenza-3 virus (bovine and human strains), equine influenza (H7N7) and human influenza virus A/Santiago/725/81 (H3N2) and A/Santiago/743/83 (HINI ).All samples were negative when challenged to parainfuenza-3 and equipe influenza viruses. Seventeen somalian sheep, two corsican rams and two karakul sheep were found positive to human influenza virus A/Santiago/725/81 (H3N2), and two llamas were positive to human influenza virus A/Santiago/743/83 (HINI ).