| the human environment, occupation, and possible water-borne transmission of the human hookworm, necator americanus, in endemic coastal communities of the niger delta, nigeria. | a 15-month longitudinal study was carried out in four riverine communities of the niger delta to ascertain the impact of the environment and occupation on the transmission and infection pattern of the human hookworm necator americanus. a total of 925 (50.10%) individuals were found to be infected. male and female infection rates were 54.26% and 47.96% respectively. the difference was statistically significant (p less than 0.05). the prevalence of infection, the egg counts, and the seasonal incid ... | 1992 | 1603919 |
| experimental and field studies on the viability of eggs, and the infectivity of third-stage larvae of the human hookworm necator americanus recovered from the creek waters of the niger delta, nigeria, and their epidemiological significance. | in a combined field and laboratory study, the eggs and 3rd-stage infective larvae of the human hookworm necator americanus were recovered from the creek waters of the niger delta, nigeria. they were tested for viability and infectivity. eggs recovered from fresh water creeks showed a viability or hatching index of between 17.5 and 23.7%. eggs recovered from brackish water showed a viability index of 18.8-21.4% in 'normal' cultures, and a maximum index of 6.3% when cultured in brackish water. the ... | 1988 | 3362571 |
| assessment of the effectiveness of primary health care interventions in the control of three intestinal nematode infections in rural communities. | in a 30 months' longitudinal study, primary health care intervention was effective in reducing the prevalence of three common intestinal nematode infections (ascaris lumbricoides, trichuris trichiura and necator americanus) in three communities. this was achieved by training school leavers and auxiliary aides as microscopists, health inspectors and field assistants and deploying them to provide screening, surveillance, environmental sanitation, and mass-expulsion chemotherapy (mec). post-control ... | 1993 | 8475245 |