Potential spread of schistosomiasis in the periphery of greater metropolitan region of Rio de Janeiro

Freshwater snails and schistosomiasis mansoni in the State of Rio de Janeiro, Brazil: I - metropolitan mesoregion

“…Magalhães (1964) reported the coexistence of B. tenagophila and B. glabrata in Manguinhos, on the Campus of Instituto Oswaldo Cruz. The same was observed by Grault et al (1998) in three breeding sites in Santa Cruz, a locality in the west area of Rio de Janeiro City. We did not find B. glabrata in Santa Cruz, even after exhaustive sampling in the areas pointed out.…”

Socioeconomic studies of schistosomiasis in Brazil: A review

“…A new transmission site was recently discovered at the periphery of Rio de Janeiro which was settled during the last few decades by marginalized populations. S. mansoni was probably introduced by infected persons from endemic areas due to the continuous flow of migrants into that city, a phenomenon which has also been reported from other Brazilian industrial and commercial centers (Grault et al, 1998). …”

Acute schistosomiasis outbreak in the metropolitan area of Belo Horizonte, Minas Gerais: alert about the risk of unnoticed transmission increased by growing rural tourism

“…However, a lot of positive non-symptomatic carriers escaped. They maintain the disease on lower prevalence levels and trigger spreading of the disease into uninfected areas (Carmo & Baretto 1994, Amorim 1997, Coura-Filho 1997a, Barbosa 1998, Grault et al 1998). In our case, this group is represented through the infected, nonsymptomatic residents of the site who were not detected through the common health system.…”