Abstract:
:By microinjection of cryopreserved microfilariae (mf) into nulliparous flies, a comparison of the lengths of the infective larvae (L3) of Onchocerca volvulus and O. ochengi from the head of Simulium damnosum s.l. (presumed S. sirbanum) has been made. The suitability of S. sirbanum as a host was similar for both Onchocerca spp. The mean length +/- standard deviation of O. ochengi infective larvae measured in aqueous medium after storage of infected flies in liquid nitrogen was 762 +/- 63 microns (n = 39), significantly longer (P much less than 0.0001) than those of a savanna isolate of O. volvulus (676 +/- 56 microns, n = 26). Although the frequency distributions of the lengths of larvae of the 2 species overlapped, a critical value for discrimination of 719 microns applied to normally distributed populations with means and standard deviations of these samples would result in correct classification of 78% of true O. volvulus and 75% of true O. ochengi. A discriminant function analysis incorporating width measurements did not usefully improve the level of accuracy of discrimination. Larvae from flies stored in 70% ethanol and stained with acid haemalum were about 10% shorter, but O. ochengi infective larvae were still proportionately longer than those of O. volvulus (693 +/- 40 microns, n = 45 compared to 580 +/- 38 microns, n = 6, respectively). These data show that the infective L3 of O. volvulus and O. ochengi differ morphologically. Although the population length distributions overlap, by classifying larvae greater than 719 microns long as O. ochengi and those less than 719 microns long as O. volvulus a more accurate estimation of true O. volvulus infection rates in S. damnosum s.l. can be derived than is currently possible.
journal_name
Trans R Soc Trop Med Hygauthors
McCall PJ,Townson H,Trees AJdoi
10.1016/0035-9203(92)90443-gsubject
Has Abstractpub_date
1992-01-01 00:00:00pages
63-5issue
1eissn
0035-9203issn
1878-3503journal_volume
86pub_type
杂志文章abstract::Young African children with severe malaria are given quinine using a regimen designed for Thai adults. We measured quinine in the blood, plasma and plasma water of young children in Kenya after rapid intravenous and intramuscular dosing, and calculated the therapeutic range of unbound quinine. The peak plasma quinine ...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/0035-9203(93)90494-b
更新日期:1993-03-01 00:00:00
abstract::In a region of Sudanese savannah in Burkina Faso, insecticide-treated curtains were installed in 8 out of 16 zones, each covering an area of about 50 km2. Longitudinal entomological monitoring using CDC light traps was performed in 4 villages (2 intervention, 2 control) over a period of 3 years (including 1 year prior...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/s0035-9203(99)90343-7
更新日期:1999-09-01 00:00:00
abstract::We evaluated amodiaquine as a replacement drug for treating falciparum malaria in an area of Pakistani Punjab where chloroquine-resistant Plasmodium falciparum has recently emerged. Amodiaquine appeared to be 4 to 8 times more effective than chloroquine when P. falciparum isolates were tested in vitro. However, the re...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/0035-9203(87)90311-7
更新日期:1987-01-01 00:00:00
abstract::Sera of 173 individuals living in a malaria endemic region in Upper Volta (Donsé village) were screened for the presence of 14 auto-antibodies by the indirect immunofluorescent and/or passive haemagglutination techniques. At least one auto-antibody (AAb) was detected in sera of 72% (124 out of 173) subjects. No differ...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/0035-9203(83)90064-0
更新日期:1983-01-01 00:00:00
abstract::In 2005-2006, a large outbreak of Chikungunya (CHIK) fever occurred on the western Indian Ocean Islands. In Mayotte, concurrent with an enhanced passive case notification system, we carried out two surveys. A seroprevalence survey designed to document recent CHIK infection was conducted on serum samples collected from...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/j.trstmh.2008.02.018
更新日期:2008-08-01 00:00:00
abstract::Mebendazole, a benzimidazole carbamate compound, is currently in use for human medical practice against soil-transmitted helminthiasis (STH) and enterobiasis. However, it has been demonstrated that its spectrum of activity is broad and goes beyond those infections. Several studies provide evidence that this drug, take...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章,评审
doi:10.1016/j.trstmh.2008.11.029
更新日期:2009-05-01 00:00:00
abstract:BACKGROUND:In urbanized, low-income cities with high rates of congestion, delivery of antiepileptic drugs (AEDs) by unmanned aerial vehicles (drones) to people with epilepsy for both emergency and non-urgent distribution may prove beneficial. METHODS:Conakry is the capital of the Republic of Guinea, a low-income sub-S...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1093/trstmh/trz131
更新日期:2020-04-08 00:00:00
abstract::In 2005, a Marburg haemorrhagic fever (MHF) outbreak occurred in Uíge province, Angola, which had its epicentre in Uíge municipality. Concurrently, a health facility located a considerable distance from the outbreak's epicentre reported a drastic reduction in attendance, possibly due to a remote effect of the ongoing ...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/j.trstmh.2008.09.001
更新日期:2009-02-01 00:00:00
abstract:BACKGROUND:Dengue is a major cause of acute febrile illness in Sri Lanka. Dengue has historically been considered an urban disease. In 2012-2013, we documented that acute dengue was surprisingly associated with self-reported rural residence in the Southern Province of Sri Lanka. METHODS:Patients admitted with an acute...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1093/trstmh/trz123
更新日期:2020-06-01 00:00:00
abstract::Indirect enzyme-linked immunosorbent assay (ELISA) allows sensitive detection of serum immunoglobulin (Ig) G against a soluble extract of Strongyloides stercoralis infective larvae. In this study, 40/40 (100%) human strongyloidiasis sera had high levels of anti-S. stercoralis IgG, but 30/40 (75%) filariasis sera, and ...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/0035-9203(93)90477-8
更新日期:1993-03-01 00:00:00
abstract::Both northern and southern Sudan are deploying artemisinin-based combinations against uncomplicated Plasmodium falciparum malaria (artesunate+sulfadoxine-pyrimethamine [AS+SP] in the north, artesunate+amodiaquine [AS+AQ] in the south). In 2003, we tested the efficacy of 3 day AS+SP and AS+AQ regimens in vivo in the is...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/j.trstmh.2004.10.003
更新日期:2005-07-01 00:00:00
abstract::Measured fever often forms the basis for defining clinical malaria episodes in children from endemic areas. We measured body temperature every 3 h from 08:00 to 20:00 in 69 children aged 1-5 years during the malaria season in a rural area of The Gambia. Body temperature varied on average by more than one degree Celsiu...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/0035-9203(94)90416-2
更新日期:1994-07-01 00:00:00
abstract::Six villages in Lofa County, north-west Liberia, and one near the coast were surveyed for the presence of indirect fluorescent antibodies (IFA) to Lassa virus (LV). Prevalences were similar among males and females, and among various age groups. The prevalence of IFA positive sera, 6.4%, in two roadside villages was si...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/0035-9203(84)90013-0
更新日期:1984-01-01 00:00:00
abstract::Cicely Williams, in her original description of kwashiorkor, implied that deficiency of protein in the baby's food could be a main cause of the syndrome. The hallmark of kwashiorkor is oedema. According to the 'classical' theory, an inadequate intake of protein leads to a low plasma albumin concentration, which in tur...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/0035-9203(84)90053-1
更新日期:1984-01-01 00:00:00
abstract::A retrospective hospital record-based study for Uganda was conducted in Hoima district (an area of stable malaria transmission) and in Kabale district (an area of unstable malaria transmission). In-patient and maternity ward registers for January 1997-December 1998 were reviewed and malaria admissions, mortality, abor...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章,多中心研究
doi:10.1016/s0035-9203(01)90003-3
更新日期:2001-09-01 00:00:00
abstract::Antimicrobial resistance is threatening to undermine many of the health care improvements achieved in the tropics in the past 2 decades. While only limited data are available, there is evidence from most tropical areas of the spread of resistant bacterial strains in diseases from typhoid and bacillary dysentery to tub...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章,评审
doi:10.1016/s0035-9203(01)90134-8
更新日期:2001-03-01 00:00:00
abstract::Retrospective and prospective serological surveys to determine the prevalence of respiratory syncytial virus (RSV) and adenovirus (ADV) infections in children with respiratory diseases were carried out from 1985 to 1988 at the University College Hospital, Ibadan, Nigeria. 306 sera from subjects between 3 months and 12...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/0035-9203(92)90317-6
更新日期:1992-05-01 00:00:00
abstract::An enzyme-linked immunosorbent assay (ELISA) developed using Leishmania donovani promastigote soluble antigen gave positive responses in practically all the clinically and parasitologically diagnosed patients with kala-azar in a preliminary study. Healthy control subjects from non-endemic and endemic areas gave negati...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/0035-9203(90)90319-a
更新日期:1990-05-01 00:00:00
abstract::A range of animal models of Burkholderia pseudomallei infection have been reported, and the host species differ widely both in their susceptibility to infection and in the pathogenesis of disease. In mice, and depending on the route of infection, dose, and mouse strain, the disease can range from a chronic, and in som...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/S0035-9203(08)70026-9
更新日期:2008-12-01 00:00:00
abstract::Examination of 97 rats trapped in Port Moresby and Lae on the mainland of Papua New Guinea and in Rabaul, East New Britain Province, showed that 12.4% were infected by Angiostrongylus cantonensis. Larval An. cantonensis were found in Achatina fulica snails collected at these towns, from the Ramu Valley near Madang on ...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/0035-9203(84)90017-8
更新日期:1984-01-01 00:00:00
abstract::The seroprevalence of hepatitis C virus was evaluated in blood donors and antenatal clinic attenders in Kumasi, Ghana and seropositive subjects were tested for hepatitis C virus ribonucleic acid by the polymerase chain reaction (PCR). The overall seroprevalence among Ghanaians was 2.8% but there was a significantly hi...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/s0035-9203(98)90887-2
更新日期:1998-09-01 00:00:00
abstract::A retrospective study of 8 cases of envenoming by Chinese krait (Bungarus multicinctus) and one banded krait (B. fasciatus) in southern Myanmar is reported. Chinese krait bite produced minimal local reactions, except in one person bitten on the lip which resulted in local swelling. Onset of neurotoxic symptoms occurre...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/s0035-9203(97)90524-1
更新日期:1997-11-01 00:00:00
abstract:BACKGROUND:Mumbai is a hot spot for drug-resistant TB, and private practitioners trained in AYUSH systems (Ayurveda, yoga, Unani, Siddha and homeopathy) are major healthcare providers. It is important to understand how AYUSH practitioners manage patients with TB or presumptive TB. METHODS:We conducted semi-structured ...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1093/trstmh/trw009
更新日期:2016-03-01 00:00:00
abstract::An evaluation of the performance of the Kersey Nutrition Rehabilitation Centre in Nigeria was undertaken with particular focus on mortality, rate of weight gain, and the management strategy. During 1987-1991 the total number of admissions for protein-energy malnutrition (PEM) was 803. The age group most commonly repre...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/0035-9203(94)90177-5
更新日期:1994-09-01 00:00:00
abstract::Allopurinol and allopurinol ribonucleoside tested in vitro and in vivo for activity against Leishmania donovani. Activity in vitro was low against the amastigote form of this parasite with ED50 values of the order of 54 and 96 microM and 86 and 213 microM respectively for the two compounds. In vivo inhibition of up to...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/0035-9203(85)90255-x
更新日期:1985-01-01 00:00:00
abstract::A large epidemic of urban yellow fever occurred in April and May 1987 in Oyo State, western Nigeria. The principal vector was Aedes aegypti, breeding in domestic water containers. The 1987 outbreak followed an epidemic of sylvatic yellow fever in eastern Nigeria the previous year, and probably resulted from introducti...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/0035-9203(89)90518-x
更新日期:1989-05-01 00:00:00
abstract:BACKGROUND:Lassa fever (LF) is an acute viral haemorrhagic infection, endemic in West Africa. Confirmatory diagnosis and treatment (ribavirin) is difficult, expensive, and restricted to specialised hospitals. Among confirmed and suspected LF cases, we report on clinical and laboratory features, timing and administratio...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1093/trstmh/tru009
更新日期:2014-03-01 00:00:00
abstract::Six hundred and ninety-three patients with kala-azar were seen in Khartoum, Sudan, from January 1989 to February 1990. They were almost exclusively from the Nuer tribe, originating from the western Upper Nile province in southern Sudan, an area not known previously to be endemic for kala-azar. Because of the civil war...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/0035-9203(91)90293-8
更新日期:1991-05-01 00:00:00
abstract::Out of 938 parasitologically confirmed patients with visceral leishmaniasis treated with amphotericin B (1 mg/kg bodyweight daily infused in 2 h for 20 days), 935 were cured clinically, 933 parasitologically and 931 ultimately (no relapse within 6 months). Two parasitologically 'not cured' and 4 relapsed patients were...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/s0035-9203(99)90037-8
更新日期:1999-05-01 00:00:00
abstract:BACKGROUND:Large numbers of tuberculosis (TB) patients seek care from private for-profit providers. This study aimed to assess and compare TB control activities in the private for-profit and public sectors in Kenya between 2013 and 2017. METHODS:We conducted a retrospective cross-sectional study using routinely collec...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1093/trstmh/trz062
更新日期:2019-12-01 00:00:00