title: [Occurrence of Mansonella ozzardi (Nematoda, Onchocercidae) in riverine communities of the Purus river, Boca do Acre municipality, Amazonas State, Brazil].
abstract: The study aimed to estimate the prevalence of Mansonella ozzardi and calculate the parasitic infection rate in simuliid blackflies. The research was conducted in communities on the Purus River, Boca do Acre municipality, Amazonas State, Brazil. Prevalence was measured using the thick smear method. Captured blackflies were dissected to verify the parasitic infection rate. M. ozzardi prevalence was 27.30% (77/282). The study showed higher prevalence in men (31.97%) than women (22.22%), farmers (48.99%), and individuals in the 38-47 (60.00%), 48-57 (66.66%), and 58-67-year age brackets (75.00%). Microfilaremia was higher in individuals 58 to 67 years of age (average= 58.41 mf/40 microl), men (41.44 mf/40 microl), and farmers (49.94 mf/40 microl). Only the simuliid Cerqueirellum amazonicum was found infected with a parasitic infection rate of 0.98%.
authors.affiliation: Coordenação de Pesquisas em Ciências da Saúde, Instituto Nacional de Pesquisas da Amazônia, Manaus, Brasil. jmedeiro@inpa.gov.br
authors.forename: Jansen Fernandes
authors.initials: JF
authors.lastname: Medeiros
authors.forename: Victor
authors.initials: V
authors.lastname: Py-Daniel
authors.forename: Ulysses Carvalho
authors.initials: UC
authors.lastname: Barbosa
authors.forename: Guilherme Maerschner
authors.initials: GM
authors.lastname: Ogawa
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000818:Animals; D001769:Blood / Q000469:parasitology; D001938:Brazil / Q000453:epidemiology; D016009:Chi-Square Distribution; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007303:Insect Vectors / Q000469:parasitology*; D008297:Male; D008366:Mansonella / Q000502:physiology*; D008368:Mansonelliasis / Q000097:blood / Q000453:epidemiology* / Q000635:transmission; D008842:Microfilariae / Q000302:isolation & purification / Q000502:physiology*; D008875:Middle Aged; D009790:Occupations / Q000706:statistics & numerical data; D015995:Prevalence; D012111:Residence Characteristics; D045483:Rivers; D017678:Sex Distribution; D012737:Sex Factors; D012843:Simuliidae / Q000469:parasitology*; D055815:Young Adult