Lima, P. D., Bezerra Alencar, Vitória Jordana, Vieira Machado, João Paulo, Lima Júnior, Aécio Prado, da Silva Lima, Maria Wilma, Oliveira Silva, Laryssa, Conceição Gomes, Sheilla, Souza Bispo, Martha Rejane, Cabral Silva, Ádrian, Pereira Bezerra, Letícia, Martins Cirilo, Tatyane, Silva da Paz, Wandklebson, de Amorim Santos, Israel Gomes, and Santos Ramos, Rosália Elen
Journal of Water & Health. Feb2023, Vol. 21 Issue 2, p299-312. 14p.
WATER pollution, WATER sampling, PARASITIC diseases, RAINFALL, and SEASONS
Wastewater released into the environment without proper treatment contributes to the high prevalence of parasitic infections. We aimed to investigate the occurrence of parasites in sewage waters in both rainy and dry seasons in the city of Santana do Ipanema, Brazil. This is a descriptive cross-sectional study carried out between the months of June, July (rainy season) and October (dry season) of 2021. A total of 50 streets were selected by a sample calculation in the Epi Info™ program. From each street, two wastewater samples were collected in both climatic periods. In the laboratory, the water samples were submitted to the Bailenger method with some adaptations and analyzed under an optic microscope. In the rainy season, we detected Strongyloides stercoralis (87.6%; 134), Strongylus spp. (4.6%; 7), hookworms (2.0%; 3) and Iodamoeba butschlii (62.5%; 5), and in the dry season, it was detected S. stercoralis (55.0%; 71), Metastrongylids (19.4%; 25), hookworms (12.4%; 16) and I. butschlii (76.5%; 13). The spatial analysis has shown that most hotspots were associated with S. stercoralis, mainly during periods of intense rainfall and close to river areas. Thus, the city population is subject to infections, especially by helminths regardless of seasonality. [ABSTRACT FROM AUTHOR]