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Helicobacter pylori infection is a common chronic infection affecting about half of human population worldwide and is most often acquired in early childhood [ 1 , 2 ]. Among children, prevalence of the
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Cryptosporidiosis is a worldwide infection caused by the protozoan Cryptosporidium , a parasite that infects many species of vertebrates, including humans, causing acute gastroenteritis, abdominal pain, and
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with human immunodeficiency virus infection N. Engl. J. Med. 324 1644 – 1650 .
. S. Moreno P. Miralles M. D. Diaz 1997 Isoniazid preventive therapy in human immunodeficiency virusinfected persons: long-term effect on