Abstract：
:This literature review indicates that menstrual regulation during the fifth to seventh week of pregnancy is not always as free from risk as has sometimes been claimed. In particular, it has a higher failure rate, in terms of continued pregnancy, than has abortion by suction in later stages of pregnancy.Vacuum aspiration is still the method of choice until the beginning of the eleventh week of pregnancy. After that, it seems to be slightly more hazardous than dilatation and curettage (D & C). Preoperative cervical dilatation seems to be beneficial after the tenth week, even though its effectiveness in preventing cervical tears and subsequent cervical incompetence in primigravidae remains to be definitely proven.For second trimester abortions, there is an urgent need for controlled studies, in the thirteenth to fifteenth week, to compare the increasingly popular modified D & C technique with various two-stage techniques, both in terms of safety and of cost-effectiveness. Prostaglandins for second trimester abortions have not quite fulfilled their promise as a relatively risk-free technique; they do, however, decrease the time interval between the administration of the abortifacient and the expulsion of the fetus.Aspects of abortion care other than the purely technical ones are much less well covered by research. For instance, very little is known about the acceptability of various abortion and anaesthetic techniques to either pregnant women or hospital staff. More studies are also needed on the interaction of pregnant women with the service providers at various levels and on how this affects their subsequent reproductive behaviour.
journal_name
Bull World Health Organjournal_title
Bulletin of the World Health Organizationauthors
Edström Ksubject
Has Abstractpub_date
1979-01-01 00:00:00pages
481-97issue
3eissn
0042-9686issn
1564-0604journal_volume
57pub_type
杂志文章abstract：:This Memorandum summarizes current knowledge on the epidemiology of cholera and diarrhoea due to enterotoxigenic Escherichia coli (ETEC) and outlines the results of recent research to develop an effective oral vaccine against cholera. The meeting reviewed current research on the protective antigens of ETEC and made a ...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1990-01-01 00:00:00
abstract：:The alpha antitoxin contents of the International Reference Preparations of Clostridium welchii Types B and D Antitoxins were assayed against two type A test toxins-Cl. welchii (perfringens) test toxin P2, issued by the Statens Seruminstitut, Copenhagen, and Cl. welchii test toxin AGX 1373, issued by the Wellcome Rese...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1956-01-01 00:00:00
abstract：:A trial of the CHAT, type 1, attenuated poliovirus strain of Koprowski was begun in August 1958 in Léopoldville, a city of 350 000 people, and possessing modern medical facilities, including an institute of public health.Paralytic poliomyelitis is endemic in the city; since 1951 there has been an average annual incide...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1960-01-01 00:00:00
abstract：:Enzyme-linked immunosorbent asays (ELISAs) are described for determining levels of dapsone and pyrimethamine in urine. Both assays have a sensitivity of about 20 mug/l and are reproducible, but each produces some false positives. The problem of false positive reactions was partially obviated by requiring positive resu...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1986-01-01 00:00:00
abstract：:A great many stimuli-auditory, visual and chemical-attract or repel insects and some of these play an essential role in maintaining the life of the individual or perpetuating the species. The author examines the modes of action of attractants in nature, particularly in relation to blood feeding. The predominant mechan...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1963-01-01 00:00:00
abstract：:In developing countries, chronic respiratory diseases represent a challenge to public health because of their frequency, severity, projected trends, and economic impact. Health care planners, for example, are faced with a dramatic increase in tobacco use and must establish priorities for the allocation of limited reso...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：2001-01-01 00:00:00
abstract：:While relapses following clinical cure of American cutaneous leishmaniasis are frequent, no test has been described until now to predict such relapses. A cohort of 318 American cutaneous leishmaniasis patients was followed up for two years after treatment with meglumine antimoniate, during which time 32 relapses occur...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：2000-01-01 00:00:00
abstract：OBJECTIVE:To examine the association between maternal smoking and non-syndromic orofacial clefts in infants. METHODS:A meta-analysis of the association between maternal smoking during pregnancy was carried out using data from 24 case-control and cohort studies. FINDINGS:Consistent, moderate and statistically signific...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章,meta分析
doi：
更新日期：2004-03-01 00:00:00
abstract：:Potency determinations in mice of venom samples from snakes of the species Bothrops jararaca, which had been caught in an area of less than 10 000 km(2), gave the following principal results:(1) Various methods of drying-i.e., closed and continuous vacuum-drying at 5 degrees and 37 degrees C and freeze-drying (lyophil...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1958-01-01 00:00:00
abstract：OBJECTIVE:Rubella vaccine is not included in the immunization schedule in Myanmar. Although surveillance for outbreaks of measles and rubella is conducted nationwide, there is no routine surveillance for congenital rubella syndrome (CRS). Therefore, we organized a study to assess the burden of CRS. METHODS:From 1 Dece...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：10.2471/blt.05.022814
更新日期：2006-01-01 00:00:00
abstract：:Individual patient care and programme evaluation are pivotal for the success of antiretroviral treatment programmes in resource-limited countries. While computer-aided documentation and data storage are indispensable for any large programme, several important issues need to be addressed including which data are to be ...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：10.2471/blt.04.019307
更新日期：2006-02-01 00:00:00
abstract：:The recommended procedures and criteria for T-cell receptor (TCR) designations are described. The officially adopted designations are for the TCR A, B, D and G loci and for V, D, J and C segments. ...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1993-01-01 00:00:00
abstract：:The patent system is now reaching into the tools of medical research, including gene sequences themselves. Many of the new patents can potentially preempt large areas of medical research and lay down legal barriers to the development of a broad category of products. Researchers must therefore consider redesigning thei...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：2002-01-01 00:00:00
abstract：OBJECTIVE:To compare the cost-effectiveness of the tuberculosis (TB) programme run by the Bangladesh Rural Advancement Committee (BRAC), which uses community health workers (CHWs), with that of the government TB programme which does not use CHWs. METHODS:TB control statistics and cost data for July 1996 - June 1997 we...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：2002-01-01 00:00:00
abstract：:Sexually transmitted diseases (STD) are now the commonest group of notifiable infectious diseases in most countries, particularly in the age group of 15 to 50 years and in infants. Their control is important considering the high incidence of acute infections, complications and sequelae, their socioeconomic impact, and...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章,评审
doi：
更新日期：1990-01-01 00:00:00
abstract：:Concentration of infected erythrocytes was achieved in cell suspensions derived from long-term culture of Plasmodium falciparum growing asynchronously in human erythrocytes. This new procedure involves the slow centrifugation (at 33 g) of erythrocyte suspensions through 5% Ficoll solutions. Mature asexual erythrocytic...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1979-01-01 00:00:00
abstract：:A simple grading system for trachoma, based on the presence or absence of five selected "key" signs, has been developed. The method was tested in the field and showed good observer agreement, the most critical point being the identification of severe cases of the disease. It is expected that the system will facilitate...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1987-01-01 00:00:00
abstract：:The author reviews the growing body of evidence that urban populations of Culex pipiens fatigans have increased extensively during recent years in both Africa and Asia. Two main factors seem to be responsible-the spread of urbanization, providing favourable habitats for this essentially urban mosquito; and the increas...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1962-01-01 00:00:00
abstract：:A description is given of laboratory and field trials with a new molluscicide, Bayer 73. Following successful laboratory trials at one part per million, a river containing much vegetation and many semi-stagnant pools was treated at this dosage, the application resulting in a complete disappearance of snails and eggs f...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1960-01-01 00:00:00
abstract：:In order to determine the effectiveness of anti-typhoid vaccines in man a controlled field trial, the first of its kind, was organized in 1954-60 in the town and district of Osijek, Yugoslavia. Heat-killed, phenol-preserved and alcohol-killed, alcohol-preserved anti-typhoid monovaccines were used, with phenolized dyse...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1962-01-01 00:00:00
abstract：:Described are the results of an international collaborative study to evaluate the use of whole blood samples spotted on filter-paper (BSP) for the detection of antibodies to human immunodeficiency virus type 1 (HIV-1). BSP samples were collected from 40 patients at risk for HIV-1 infection and tested blindly using com...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1992-01-01 00:00:00
abstract：:Epidemiological studies of the cardiovascular characteristics of three typically rural communities in the Gambia, Jamaica, and the United Republic of Tanzania were carried out by means of standardized methodology. This paper reports comparisons of arterial blood pressure distribution and electrocardiographic findings ...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1979-01-01 00:00:00
abstract：:Several authors have reported an inverse correlation between death rates from cardiovascular diseases and local water hardness, but the significance of such a relationship is still debated. To investigate further this relationship, another indicator of water quality was used, namely, the alpha-radioactivity level of r...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1970-01-01 00:00:00
abstract：:This article describes the essential components of oral health information systems for the analysis of trends in oral disease and the evaluation of oral health programmes at the country, regional and global levels. Standard methodology for the collection of epidemiological data on oral health has been designed by WHO ...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：/S0042-96862005000900014
更新日期：2005-09-01 00:00:00
abstract：:The authors have attempted to prepare lysed BCG vaccines retaining the protective antigens of the BCG cell wall and yet eliciting in experimental animals limited sensitivity to the tuberculin substances, the advantage sought being to retain the usefulness of the tuberculin following vaccination as an indicator of supe...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1967-01-01 00:00:00
abstract：OBJECTIVE:To investigate physical activity during leisure time and commuting among persons aged 15-69 years in the urban population of Tianjin, China, and to assess its associations with demographic and health-related characteristics. METHODS:In 1996 a cross-sectional survey of 2002 males and 1974 females provided inf...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：2002-01-01 00:00:00
abstract：:This paper considers new developments to strengthen sexual and reproductive health and HIV linkages and discusses factors that continue to impede progress. It is based on a previous review undertaken for the United Kingdom Department for International Development in 2006 that examined the constraints and opportunities...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：10.2471/blt.08.059279
更新日期：2009-11-01 00:00:00
abstract：:Reported is the use of a simplified methodology for carrying out a community-based epidemiological assessment that is compatible with the goals of primary health care research. For this purpose, a current-status life table analysis of data from 1131 women who were served by community health workers in the State of Méx...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1990-01-01 00:00:00
abstract：:The feeding habits of 15 species of Glossina have been studied by the identification of their blood meals. Representative samples of the blood meals from each of these species of tsetse fly and from different habitats were collected and 22 640 blood meals were identified. The feeding patterns are characteristic for ea...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1963-01-01 00:00:00
abstract：:At present, larvicidal attack is the only feasible measure for the control of Culex pipiens fatigans. However, in the cities of the tropics, which are the principal sites of the filariasis problem, this has usually been a losing battle. The proper method of larval control is to eliminate the breeding sites; instead th...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1967-01-01 00:00:00
