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Volume 30, Number 9—September 2024
Research

Lower Microscopy Sensitivity with Decreasing Malaria Prevalence in the Urban Amazon Region, Brazil, 2018–2021

Priscila T. Rodrigues, Igor C. Johansen, Winni A. Ladeia, Fabiana D. Esquivel, Rodrigo M. Corder, Juliana Tonini, Priscila R. Calil, Anderson R.J. Fernandes, Pablo S. Fontoura, Carlos E. Cavasini, Joseph M. Vinetz, Marcia C. Castro, Marcelo U. FerreiraComments to Author , and on behalf of the Mâncio Lima Cohort Study Working Group1
Author affiliations: Centro Nacional de Pesquisa em Energia e Materiais, Campinas, Brazil (P.T. Rodrigues); University of São Paulo, São Paulo, Brazil (P.T. Rodrigues, I.C. Johansen, W.A. Ladeia, F.D. Esquivel, R.M. Corder; J. Tonini, P.R. Calil, A.R.J. Fernandes, P.S. Fontoura, M.U. Ferreira); State University of Campinas, Campinas (I.C. Johansen); Universidade Federal do ABC, Santo André, Brazil (J. Tonini); Instituto Federal de Educação, Ciência e Tecnologia de Minas Gerais, Belo Horizonte, Brazil (A.R.J. Fernandes); Ministry of Health, Brasília, Brazil (P.S. Fontoura); Faculdade de Medicina de São José do Rio Preto, São José do Rio Preto, Brazil (C.E. Cavasini); Yale School of Medicine, New Haven, Connecticut, USA (J.M. Vinetz); Universidad Peruana Cayetano Heredia, Lima, Peru (J.M. Vinetz); Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA (M.C. Castro); Global Health and Tropical Medicine, NOVA University of Lisbon, Lisbon, Portugal (M.U. Ferreira); Institute of Hygiene and Tropical Medicine, NOVA University of Lisbon (M.U. Ferreira)

Main Article

Table 1

Plasmodium spp. samples used for molecular genotyping in study of microscopy sensitivity and decreased malaria prevalence in the urban Amazon Region, Brazil, 2018–2021

Species and year Sample collection site Place of infection, urban/periurban or rural Symptoms, Y/N Microscopy, positive/negative Total
P. vivax
2016 Azul River and Nova Cintra 0/2 0/2 0/2 2
2018 Mâncio Lima 42/0 5/37 7/35 42
Vila Assis Brasil 0/42 9/33 11/31 42
Health facilities 2/1 3/0 3/0 3
All sites, 2018 44/43 17/70 21/66 87
2019 Mâncio Lima 28/0 2/26 1/27 28
Vila Assis Brasil 0/61 6/55 4/57 61
Azul River 0/3 1/2 1/2 3
Health facilities 14/33 47/0 47/0 47
All sites, 2019 62/77 56/83 53/86 139
2020 Mâncio Lima 13/0 0/13 1/12 13
2021 Mâncio Lima 23/0 4/19 1/22 23
Total, all sites, 2016–2021
122/142
 77/187
 76/188
 264
P. falciparum
2018 Azul River 0/2 0/2 2/0 2
Mâncio Lima 39/0 15/24 17/22 39
Vila Assis Brasil 0/10 2/8 4/6 10
Health facilities 3/0 3/0 3/0 3
All sites, 2018 42/12 20/34 26/28 54
2019 Azul River 0/3 0/3 0/3 3
Mâncio Lima 7/0 2/5 1/6 7
Vila Assis Brasil 0/19 3/16 1/18 19
Health facilities 13/36 49/0 49/0 49
All sites, 2019 20/58 54/24 51/27 78
2020 Mâncio Lima 9/0 1/8 0/9 9
Health facilities 2/0 2/0 2/0 2
All sites, 2020 9/2 3/8 2/9 11
2021 Mâncio Lima 19/0 4/15 0/19 19
Total, all sites, 2018-21
 92/70 81/81 79/83 162

Main Article

1Group members are listed at the end of this article.

Page created: August 01, 2024
Page updated: August 20, 2024
Page reviewed: August 20, 2024
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