Occurrence of Giardia Intestinalis and Cryptosporidium Sp. in Wastewater Samples from São Paulo State, Brazil, and Lima, Peru
Overview
Toxicology
Authors
Affiliations
The objectives of the study were to detect and genotype Cryptosporidium spp. and Giardia intestinalis in wastewater samples obtained from five cities with high transit of people in the State of São Paulo, Brazil, and at the entrance of a Wastewater Treatment Plant (WWTP) in Lima, Peru. Samples were collected and concentrated by centrifugation. The genomic DNA was extracted for molecular characterization by nested PCR for Cryptosporidium and double nested PCR for Giardia, followed by sequencing and phylogenetic analysis. G. intestinalis was found in 63.6 % of the samples, and the human assemblages A and B were identified. Cryptosporidium sp. was found in 36.4 % of the samples, and the species were corresponding to Cryptosporidium hominis, Cryptosporidium cuniculus, and Cryptosporidium muris. Results revealed the presence of human pathogenic Cryptosporidium species and G. intestinalis human pathogenic assemblages. Molecular tools highlight the importance to map the genetic diversity of these parasites, as well as to detect their epidemiological circulation pathway in the environment.
Can Wastewater Surveillance Enhance Genomic Tracking of Climate-Driven Pathogens?.
Van Poelvoorde L, Karlsson E, Dupont-Rouzeyrol M, Roosens N Microorganisms. 2025; 13(2).
PMID: 40005661 PMC: 11858121. DOI: 10.3390/microorganisms13020294.
Gentry Z, Zhao L, Faust R, David R, Norton J, Xagoraraki I Front Public Health. 2023; 11:1178515.
PMID: 37333521 PMC: 10272568. DOI: 10.3389/fpubh.2023.1178515.
Burden and Epidemiology of Human Intestinal Infection in Colombia: A Systematic Review.
Fusaro C, Chavez-Romero Y, Prada S, Serrano-Silva N, Bernal J, Gonzalez-Jimenez F Trop Med Infect Dis. 2022; 7(10).
PMID: 36288066 PMC: 9608748. DOI: 10.3390/tropicalmed7100325.
Fradette M, Culley A, Charette S Microorganisms. 2022; 10(6).
PMID: 35744692 PMC: 9228427. DOI: 10.3390/microorganisms10061175.
Molecular Detection of in Rabbits () from Tenerife, Canary Islands, Spain.
Baz-Gonzalez E, Martin-Carrillo N, Garcia-Livia K, Foronda P Vet Sci. 2022; 9(2).
PMID: 35202344 PMC: 8877424. DOI: 10.3390/vetsci9020091.