PMID- 1780993
OWN - NLM
STAT- MEDLINE
DCOM- 19920310
LR  - 20190510
IS  - 0035-9203 (Print)
IS  - 0035-9203 (Linking)
VI  - 85
IP  - 5
DP  - 1991 Sep-Oct
TI  - The epidemiology of schistosomiasis in Burundi and its consequences for control.
PG  - 626-33
AB  - This paper summarizes the results of a series of studies on the epidemiology, 
      morbidity and transmission of Schistosoma mansoni in Burundi, and discusses their 
      consequences for control. The main endemic area is the Imbo lowland, consisting 
      of the Rusizi plain, the urban focus of Bujumbura, and the shores of lake 
      Tanganyika; a small, new focus was discovered in the highlands, around lake 
      Cohoha. Distribution studies on 5-10% population samples with duplicate 28 mg 
      Kato smears in these 4 foci showed prevalences of 33%, 26%, 17%, 19% and mean 
      (positive) egg loads of 110, 105, 92, 144 eggs/g, respectively. The combined 
      population at risk was estimated to be 400,000 people, the total number of 
      detectable cases 90,000. Prevalences and intensities varied greatly at the 
      subregional, local and even sublocal level. The age- and sex-related prevalences 
      and intensities of infection showed typical peaks in children and adolescents, 
      but remained relatively high in adults in many areas; these patterns varied from 
      one area to another and could be related to ecology and water contact. Morbidity 
      studies showed that, in children as well as in adults, schistosomiasis-related 
      morbidity such as (bloody) diarrhoea, hepatomealy and splenomegaly was apparent 
      mainly in areas with prevalences over 30-40%. The intermediate hosts were 
      Biomphalaria pfeifferi (Imbo), B. sudanica (Tanganyika marshes) and B. stanleyi 
      (Cohoha). Population dynamic studies showed strong seasonal variations, the 
      patterns of which were focal and even erratic in space and time. Snail densities 
      and cercarial infection rates (0.85% overall in B. pfeifferi) were low.(ABSTRACT 
      TRUNCATED AT 250 WORDS)
FAU - Gryseels, B
AU  - Gryseels B
AD  - Laboratory of Parasitology, Faculty of Medicine, University of Leiden, The 
      Netherlands.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - England
TA  - Trans R Soc Trop Med Hyg
JT  - Transactions of the Royal Society of Tropical Medicine and Hygiene
JID - 7506129
RN  - 059QF0KO0R (Water)
SB  - IM
MH  - Adolescent
MH  - Adult
MH  - Age Factors
MH  - Animals
MH  - Biomphalaria/parasitology
MH  - Burundi/epidemiology
MH  - Child
MH  - Child, Preschool
MH  - Disease Vectors
MH  - Female
MH  - Humans
MH  - Infant
MH  - Infant, Newborn
MH  - Male
MH  - Middle Aged
MH  - Prevalence
MH  - Schistosomiasis mansoni/*epidemiology/prevention & control/*transmission
MH  - Seasons
MH  - Sex Factors
MH  - Water
EDAT- 1991/09/01 00:00
MHDA- 1991/09/01 00:01
CRDT- 1991/09/01 00:00
PHST- 1991/09/01 00:00 [pubmed]
PHST- 1991/09/01 00:01 [medline]
PHST- 1991/09/01 00:00 [entrez]
AID - 10.1016/0035-9203(91)90371-5 [doi]
PST - ppublish
SO  - Trans R Soc Trop Med Hyg. 1991 Sep-Oct;85(5):626-33. doi: 
      10.1016/0035-9203(91)90371-5.