sito Necator americanus
, asAaAaAeA- con otras formas de anemia.
(human hookworm) aspartyl proteinases and digestion of skin macromolecules during skin penetration.
They also carry parasitic nematodes such as Necator americanus
, Ancylostoma duodenale, Enterobius vermicularis and Ascaris lumbricoides.
The stool clearance rates for the various types of parasites were 71%-100% (Ascaris lumbricoides [11 of 13], Entamoeba histolytica [5 of 7], Necator americanus
[4 of 5], Strongyloides stercoralis [4 of 4], Trichuris trichiura [3 of 3], Giardia lamblia [2 of 2], and Taenia saginata [1 of 1]).
Strongyloides stercoralis (threadworm) and Necator americanus and Ancylostoma duodenale (hookworms) are less common here but should be considered in immigrants, such as our patient.
Necator americanus is the most prevalent hookworm in the United States, found in the southeast.
Blood loss in hookworm infections such as Necator americanus
and Ankylostoma duodenale is strongly and linearly correlated with worm load and faecal egg count.
Mixed infection with intestinal worms (Ascaris lumbricoides, Trichuris trichiura and Necator americanus
or Ancylostoma duodenale) is very common, with evidence of household aggregation of infection.
Ascaris lumbricoides Trichuris trichiura Dia 1 8 30 1 8 30 Numero 16 8 3 21 15 16 McNemar (1) 4,90 9,60 2,08 1,45 Necator americanus
Dia 1 8 30 Numero 11 2 7 McNemar (1) 7,11 1,13 B.
Human infections with Necator americanus
and Ancylostoma duodenale hookworms continue to be recognized as a leading cause of iron deficiency anemia and protein malnutrition in developing countries (1).