Ascaris lumbricoides in neonate: evidence of congenital transmission of intestinal nematodes

Abstract

Clinical and epidemiological study of a forty-days-old infant with a diarrheic condition and insufficient development led to the coprological diagnosis of ascariasis and possible congenital infection. Specific treatment with levamisole, resulted in clinical and parasitological cure, in addition to gain of weight up to normal levels. Maternal parasitism had been diagnosed two months before labor and proved beyond doubt during the ensuing epidemiological inquiry.

Transplacental transmission of tick-borne Babesia microti in its natural host Peromyscus leucopus

“…[ 37 ], as well as Toxoplasma gondii [ 38 ], Trypanosoma spp. [ 39 ], and several nematodes [ 40 , 41 ]. Similar to Plasmodium spp .…”

Parasitismo por Ascaris lumbricoides em crianças menores de dois anos: estudo populacional em comunidade do Estado do Rio de Janeiro

“…Este fato, entretanto, não garante que elas estejam protegidas do desenvolvimento de doença parasitária, pois além da capacidade migratória do parasito, que pode levar a manifestações clínicas desencadeadas por apenas um verme, devemos considerar a relação de diâmetro entre o verme e a luz intestinal (Silva et al, 1997b). Obstrução intestinal em crianças menores de cinco anos (Silva et al, 1997b), alterações nutricionais (Costa-Macedo & Rey, 1990) e obstrutivas (Rathi et al, 1981) em lactentes foram observadas em crianças com cargas parasitárias leves.…”

Diseases and parasites

“…Gross and histopathological renal examination of a mature pregnant female bowhead whale (NSB-DWM 2019B9) with severe Crassicauda infection and her full-term fetus (NSB-DWM 2019B9F) did not provide evidence for in utero transmission (Stimmelmayr and Rotstein, unpublished data). Congenital transmission of nematodes with a tissue migratory phase has been shown for humans and dogs ( Costa-Macedo and Rey, 1990 ) and a possible transplacental route of infection has been considered for Crassicauda in baleen whales ( Lambertsen, 1992 ). Given the emerging nature of this host–parasite relationship and the incomplete understanding of the life cycle of Crassicauda , much research is needed to further characterize the ecology of this unique parasite.…”