LymphedemaV1, Main, Exploration, bibRecord, 009B48

Lymphatic filariasis in Uganda: baseline investigations in Lira, Soroti and Katakwi districts

Identifieur interne : 009B48 ( Main/Exploration ); précédent : 009B47; suivant : 009B49

Lymphatic filariasis in Uganda: baseline investigations in Lira, Soroti and Katakwi districts

Auteurs : Ambrose W. Onapa [Ouganda] ; Paul E. Simonsen [Danemark] ; Erling M. Pedersen [Danemark] ; David O. Okello [Ouganda]

Source :

Transactions of The Royal Society of Tropical Medicine and Hygiene [ 0035-9203 ] ; 2001-03.

RBID : ISTEX:9146A05CBE9661EF154B11BD31C6317B70273D91

Descripteurs français

Wicri :
- geographic : Ouganda.

English descriptors

KwdEn :
- Uganda, circulating antigens, hydrocoele, lymphatic filariasis, lymphoedema, microfilariae, vector mosquitoes.

Abstract

Baseline epidemiological investigations on lymphatic filariasis were conducted for the first time in Uganda in 3 communities in the districts of Lira (Alebtong area), Soroti (Lwala area) and Katakwi (Obalanga area), located to the north of Lake Kyoga at an altitude of 1000–1100 m above sea level. Individuals from the communities were examined, in April–August 1998, for Wuchereria bancrofti specific circulating antigen (by ICT card test), microfilaraemia (by counting chamber and stained blood-smear techniques) and chronic clinical manifestations of lymphatic filariasis. Endophilic mosquitoes were sampled and dissected for filarial larvae. Prevalences of circulating filarial antigen positivity were 29%, 18% and 30% in the Alebtong, Lwala and Obalanga communities, respectively. Microfilaria (mf) prevalences were 18%, 9% and 21%, and geometric mean mf intensities among mf-positive individuals were 306, 171 and 402 mf/mL blood, in the same communities. Examination of stained blood smears revealed mf of both W. bancrofti and Mansonella Perstans, but more than 80% of mf-positive individuals harboured the first of these parasites. Prevalences of hydrocoele in adult (⩾20 years) males were 28%, 7% and 17%, and prevalences of limb elephantiasis in adults were 9%, 4% and 4%, in the Alebtong, Lwala and Obalanga communities, respectively. Anopheles gambiae s.l. (mainly An. gambiae s.s.) and An. funestus were common in all 3 communities, and showed W. bancrofti infectivity rates of 1·1–1·7% and 1·3–2·9%, respectively. It is concluded that lymphatic filariasis is highly endemic in these high-altitude areas of Uganda, with An. gambiae s.l. and An. funestus being the main vectors.

Url:

DOI: 10.1016/S0035-9203(01)90145-2

Affiliations:

Danemark, Ouganda

Le document en format XML

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<front><div type="abstract">Baseline epidemiological investigations on lymphatic filariasis were conducted for the first time in Uganda in 3 communities in the districts of Lira (Alebtong area), Soroti (Lwala area) and Katakwi (Obalanga area), located to the north of Lake Kyoga at an altitude of 1000–1100 m above sea level. Individuals from the communities were examined, in April–August 1998, for Wuchereria bancrofti specific circulating antigen (by ICT card test), microfilaraemia (by counting chamber and stained blood-smear techniques) and chronic clinical manifestations of lymphatic filariasis. Endophilic mosquitoes were sampled and dissected for filarial larvae. Prevalences of circulating filarial antigen positivity were 29%, 18% and 30% in the Alebtong, Lwala and Obalanga communities, respectively. Microfilaria (mf) prevalences were 18%, 9% and 21%, and geometric mean mf intensities among mf-positive individuals were 306, 171 and 402 mf/mL blood, in the same communities. Examination of stained blood smears revealed mf of both W. bancrofti and Mansonella Perstans, but more than 80% of mf-positive individuals harboured the first of these parasites. Prevalences of hydrocoele in adult (⩾20 years) males were 28%, 7% and 17%, and prevalences of limb elephantiasis in adults were 9%, 4% and 4%, in the Alebtong, Lwala and Obalanga communities, respectively. Anopheles gambiae s.l. (mainly An. gambiae s.s.) and An. funestus were common in all 3 communities, and showed W. bancrofti infectivity rates of 1·1–1·7% and 1·3–2·9%, respectively. It is concluded that lymphatic filariasis is highly endemic in these high-altitude areas of Uganda, with An. gambiae s.l. and An. funestus being the main vectors.</div>
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Serveur d'exploration sur le lymphœdème

Lymphatic filariasis in Uganda: baseline investigations in Lira, Soroti and Katakwi districts

Lymphatic filariasis in Uganda: baseline investigations in Lira, Soroti and Katakwi districts

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

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