The aim of the current study was to investigate the exposure of captive wild felids to various infectious pathogens using serological and molecular methods. One hundred and fifty-nine neotropic felids and 51 exotic felids from 28 captive settings in Brazil were tested. While antibodies against Feline parvovirus and Feline coronavirus (FCoV), Feline calicivirus and Bartonella spp. were frequently detected by serologic tests, antibodies against Felid herpesvirus 1 or infection with hemotropic mycoplasmas were less prevalent. Serologic evidence of exposure to Ehrlichia spp., Feline immunodeficiency virus, and Feline leukemia virus (FeLV) was detected rarely, and infections with FeLV, Ehrlichia spp., and Cytauxzoon spp. were found infrequently. The detected Bartonella sequence was molecularly similar to B. koehlerae and B. henselae; for Cytauxzoon, the sequence resembled those from domestic cats. No Anaplasma phagocytophilum and Theileria spp. infections were detected. The positive test results varied significantly among different facilities and species. Additionally, FCoV seropositivity was more prevalent in captivity than in free-ranging populations. Results suggest that testing is appropriate prior to relocation of felids.

Ticks collected in the last two decades from free-living and captive wild animals from 28 municipalities of the Brazilian state of Mato Grosso were identified and tested using molecular methods for the presence of rickettsial agents. A total of 4467 ticks (229 larvae, 1676 nymphs, 1565 males, 997 females) representing 27 ixodid species were collected from 235 species of amphibians, reptiles, birds, and mammals from three different ecoregions (Pantanal, Cerrado, and Amazonia). The species Amblyomma parkeri, Amblyomma romitii, Amblyomma varium and Ixodes luciae are reported for the first time in the state of Mato Grosso. Amongst 538 ticks tested by molecular methods for rickettsial infection, we detected 'Candidatus Rickettsia amblyommii' infecting Amblyomma cajennense sensu stricto and Amblyomma coelebs, Rickettsia sp. strain Atlantic rainforest infecting Amblyomma ovale, Rickettsia sp. strain NOD infecting Amblyomma nodosum, and 'Candidatus Rickettsia andeanae' infecting Amblyomma sculptum. Our results represent an impressive expansion of knowledge on tick fauna and rickettsiae and are essential for understanding the ecology of ticks and tick-borne diseases in the Neotropical region, particularly in midwestern Brazil.

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Dermatophytes are fungi that cause superficial mycoses in animals and humans. While studies have shown that domestic cats (Felis catus) are often asymptomatic carriers of dermatophytes, and thus a significant source of infection, this aspect has not been studied in relation to their wild relatives. The present study was aimed at determining the presence of dermatophytes on the haircoat of healthy wild felids, kept in captivity at "Fundação Parque Zoológico de São Paulo". Samples were taken from 130 adult animals of both sexes: 25 lions (Panthera leo), 12 tigers (Panthera tigris), 6 jaguars (Panthera onca), 4 leopards (Panthera pardus), 2 snow leopards (Panthera uncia), 2 pumas (Puma concolor), 2 cheetahs (Acinonyx jubatus), 1 ocelot (Leopardus pardalis), 28 tiger cats (Leopardus tigrinus), 10 margays (Leopardus wiedii), 8 geoffroy's cats (Leopardus geoffroyi), 22 jaguarundis (Herpailurus yagouaroundi) and 8 pampas cats (Oncifelis colocolo). The samples were obtained by rubbing the haircoat of the animals with squares of sterile carpet, and then seeded onto Petri dishes containing Mycobiotic agar (Difco™). The plates were incubated at 25°C for 4 weeks. The isolates were subcultured in Sabouraud dextrose agar supplemented with chloramphenicol (100mg/L) and cultured on slides for posterior identification by their macro-and microscopic characteristics. Microsporum gypseum was isolated from two apparently healthy lionesses (1.6%), both kept in terrariums. The most prevalent contaminants were of the genera Penicillium (27.9%); Cladosporium (24.5%); Acremonium (12.1%); Scopulariopsis and Chrysosporium (9.8%); and Aspergillus (5.3%). The occurrence of dermatophytes in the haircoat of healthy wild felids, maintained in captivity, confirms their status as asymptomatic carriers and characterizes them as sources of infection for other animals and for humans.