A total of 2848 study sites, with about 500 people in each, were randomly sampled for this investigation which covered a total population of 1 477 742. By stool examinations using the Kato-Katz thick-smear and larval-culture techniques, overall prevalences of 47.0%, 18.8%, and 17.2% were obtained for Ascaris lumbricoides, Trichuris trichiura, and hookworm infections, respectively. The number of...

A survey of 25,246 Malay, Chinese and Indian children and adults ranging from birth to over 60 years of age, of both sexes, from 4 types of communities with different conditions of environmental sanitation and socio-economic status revealed an overall incidence of infection with soiltransmitted helminths of 39.6 percent. The incidence of soil-transmitted helminthiasis was highest among rural ru...

More than 3 billion people worldwide are infected with parasitic worms called helminthes or suffer allergic disorders such as asthma, allergic rhinitis, food allergies and eczema. A common feature of these infectious or inflammatory conditions is the called allergic or “type 2” immune response. Type 2 immune responses are induced by and confer protection against helminthes, but can also play pa...

new observations in recent years have accented differences between the two common hookworms, ancylostoma duodenale and necator americanus, with respect to modes of transmision and pathogenicity, and have established ancylostoma ceylanicum as a species distinct from a. braziliense. transmammary and paratenic transmission are now considered to be natural modes of infection in ancylostoma caninum ...

Enteric helminthic infection is one of the most important public health issues in developing countries. These infections are transmitted by faeco-oral route and cause significant morbidity among patients of all age groups, especially in school age and preschool age children. The clinical presentation may be vague and non-specific. Frequently, patients with enteric helminthic infection (especial...

Risk maps facilitate discussion among different stakeholders and provide a tool for spatial targeting of health interventions. We present maps documenting shrinking risk profiles after deworming with respect to soil-transmitted helminthiasis among schoolchildren from disadvantaged neighbourhoods in Port Elizabeth, South Africa. Children were examined for soil-transmitted helminth infections usi...

In parasitology, particularly in helminthes studies, several methods have been used to look for the expression of specific molecules, such as RT-PCR, western blot, 2D-electrophoresis, and microscopy, among others. However, these methods require homogenization of the whole helminth parasite, preventing evaluation of individual cells or specific cell types in a given parasite tissue or organ. Als...