Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1997-6-12
pubmed:abstractText
Field epidemiological studies were conducted to examine factors affecting endemicity in an area with a low prevalence of malaria. Two annual cross sectional surveys were done to estimate parasite prevalence rates at two periods in time, to determine the distribution of the parasitemic population and to describe the serological status of the population. A longitudinal study of a sample of infected people was used to measure reinfection rates and antibody dynamics. A 2 year passive case detection was done to estimate the number and distribution of people with symptomatic infections. Malaria was found in all age groups, with marked clustering of cases. Active and passive case detection and serological surveys all gave a similar pattern of malaria distribution: generally low prevalence with small foci of relatively high endemicity. The infection frequencies were generally similar in all age groups, measured by both active and passive case detection. There was a high frequency of P. falciparum gametocytemic infections in the asymptomatic cases found through active case detection. Twenty to 39 year old males had the highest frequency of infection by active case detection, and 10-19 year old males by passive case detection. These two groups were also more likely to be gametocyte positive than their female counterparts, suggesting that in this community, this portion of the population acts as the main reservoir of infection.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0001-706X
pubmed:author
pubmed:issnType
Print
pubmed:volume
63
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
241-56
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed-meshheading:9088437-Adolescent, pubmed-meshheading:9088437-Adult, pubmed-meshheading:9088437-Age Factors, pubmed-meshheading:9088437-Aged, pubmed-meshheading:9088437-Animals, pubmed-meshheading:9088437-Antibodies, Protozoan, pubmed-meshheading:9088437-Child, pubmed-meshheading:9088437-Child, Preschool, pubmed-meshheading:9088437-Cross-Sectional Studies, pubmed-meshheading:9088437-Female, pubmed-meshheading:9088437-Fluorescent Antibody Technique, Indirect, pubmed-meshheading:9088437-Humans, pubmed-meshheading:9088437-Infant, pubmed-meshheading:9088437-Infant, Newborn, pubmed-meshheading:9088437-Longitudinal Studies, pubmed-meshheading:9088437-Malaria, pubmed-meshheading:9088437-Malaria, Falciparum, pubmed-meshheading:9088437-Male, pubmed-meshheading:9088437-Middle Aged, pubmed-meshheading:9088437-Philippines, pubmed-meshheading:9088437-Plasmodium, pubmed-meshheading:9088437-Prevalence, pubmed-meshheading:9088437-Recurrence, pubmed-meshheading:9088437-Seroepidemiologic Studies, pubmed-meshheading:9088437-Sex Factors
pubmed:year
1997
pubmed:articleTitle
Field epidemiological studies on malaria in a low endemic area in the Philippines.
pubmed:affiliation
College of Public Health, University of the Philippines Manila, Ermita. vbelizar@cph.upm.edu.ph
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.