Abstract
The objective of the study was to survey triatomines and diagnose Trypanosoma cruzi in captured vectors and sugarcane juice from sugarcane mills. 100% (3/3) of the active sugar cane mills in the study area were surveyed. An active and passive search of the vectors and research of T. cruzi in the feces of engorged triatomines by compression of the abdomen and for the juice in natura by sedimentation with Giemsa staining technique were carried out, where five samples per mill were collected, totaling 15 researched. As a result, in 100% (3/3) of the mills, 22 hematophagous triatomines were captured, with 41% (9/22) by passive search and 59% (13/22) by active search. 81.8% (18/22) were found in the household environment and 18.2% (04/22) in the intra-household environment of the mills. Two species were identified being 68.18% (15/22) Triatoma brasiliensis and 9.09% (02/22) Triatoma pseudomaculata, with one adult and the four nymphs unable to be identified. T. cruzi diagnosis for triatomines was observed 4.54% (1/22) positive and 95.45% (21/22) negative, while broth, 100% (15/15) negative. However in 33.3% (5/15) broth samples the presence of soiling (microplastics) was observed. Demonstrating the importance of investigation and monitoring of milling sites with the possibility of oral transmission, which currently represent the majority of infection records in Brazil.
Highlights
Chagas Disease caused by the protozoan Trypanosoma cruzi can be considered one of the most important pathologies in America (Santana et al 2019), with millions of people infected, mainly in Latin America (Briceño-León et al 2007)
In 2016, the Secretariat of Public Health of the State of Rio Grande do Norte (SESAP-RN) conducted an investigation in the municipalities of Alexandria, Marcelino Vieira, Pilões and Tenente Ananias, in order to confirm and notify cases associated with an outbreak of Chagas disease
According to SESAP-RN, the cases were mainly related to the ingestion of sugarcane juice during the milling periods in the aforementioned region, making them risk areas (SESAP-RN, 2020)
Summary
Chagas Disease caused by the protozoan Trypanosoma cruzi can be considered one of the most important pathologies in America (Santana et al 2019), with millions of people infected, mainly in Latin America (Briceño-León et al 2007). In. Brazil, when related to chronic cases the disease presents three million people affected, and increase in acute cases of pathology by ingestion of contaminated food (Brsil, 2019). In 2016, the Secretariat of Public Health of the State of Rio Grande do Norte (SESAP-RN) conducted an investigation in the municipalities of Alexandria, Marcelino Vieira, Pilões and Tenente Ananias, in order to confirm and notify cases associated with an outbreak of Chagas disease. According to SESAP-RN, the cases were mainly related to the ingestion of sugarcane juice during the milling periods in the aforementioned region, making them risk areas (SESAP-RN, 2020). The objective of the study was to survey triatomines and diagnose T. cruzi in captured vectors and sugarcane juice from sugarcane mills
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