Abstract：
:In this paper an analysis of genetic recombinants derived from crosses between two mutant stocks of Vibrio cholerae, strain 162, differing from one another in nutritional requirements and other characters, is presented. It is shown that parent strains possessing a fertility factor (designated as the P factor) function as gene-donors while P(-) strains (without the P factor) serve as gene-recipients. Linkage between two genetic factors (purine and valine + isoleucine) is demonstrated and the probable sequence of seven genetic factors in the chromosome of V. cholerae, strain 162, is inferred.
journal_name
Bull World Health Organjournal_title
Bulletin of the World Health Organizationauthors
BHASKARAN Ksubject
Has Abstractpub_date
1964-01-01 00:00:00pages
845-53eissn
0042-9686issn
1564-0604journal_volume
30pub_type
杂志文章abstract：:A very large private health sector exists in low-income countries. It consists of a great variety of providers and is used by a wide cross-section of the population. There are substantial concerns about the quality of care given, especially at the more informal end of the range of providers. This is particularly true ...
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：PROBLEM:Propanil is an aniline herbicide that is widely used for rice cultivation, but is also used for self-poisoning. Toxicity from propanil is largely due to methemoglobinemia. In resource-poor settings, the capacity to determine methemoglobin concentration is insufficient and prevents effective case management, whi...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：10.2471/BLT.15.158147
更新日期：2016-08-01 00:00:00
abstract：OBJECTIVE:To improve the use and dosage of antibiotics prescribed at Commune Health Stations in Viet Nam, and in so doing find out whether antibiotic dosage can be easily and reliably measured as a drug-use indicator. METHODS:All commune health workers from the 217 commune health stations in Hai Phong Province, Viet N...
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：:A study spanning 10 years indicates that the erythrocytic stages of malarial parasites can be stored indefinitely in the vapour phase of liquid nitrogen without significant loss of infectivity. The results also suggest that loss due to the recovery procedures exceeds any loss that may have occurred during freezing and...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1977-01-01 00:00:00
abstract：:With an increasing number of malaria eradication programmes approaching or entering the consolidation phase, the epidemiological features of disappearing malaria are getting better known and defined. At the same time, the old classical methods of measuring malaria prevalence have become inadequate and new methods for ...
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：: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 usefulness of a recently developed portable haemoglobinometer in primary health care was assessed in a survey of anaemia carried out in an isolated Indian community living in the jungles of northern Peru. This haemoglobinometer requires only one drop of blood to be added to a disposable cuvette without predilution...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1989-01-01 00:00:00
abstract：:This paper describes the organization of an epidemiological survey, carried out by the Lipid Centre of the Institute of Experimental Medicine in Leningrad, particularly the ways in which subjects were recruited. The different methods of recruitment resulted in a total population response of 78.14%. A time index is int...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1981-01-01 00:00:00
abstract：:A two-year study was undertaken to establish the incidence and possible viral etiology of acute respiratory diseases among the child population of a shanty town in Rio de Janeiro, Brazil. The results demonstrated that nearly half of all the illnesses seen were respiratory infections, 10% of them affecting the lower re...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1983-01-01 00:00:00
abstract：:As a basis for considering the forms and patterns of national committees on vital and health statistics in the future, the author first discusses the six main objectives of national systems of those statistics. Turning then to the aims of the national committees themselves, he observes that such is the variety of stat...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1954-01-01 00:00:00
abstract：OBJECTIVE:We sought to assess the current status of global data on death registration and to examine several indicators of data completeness and quality. METHODS:We summarized the availability of death registration data by year and country. Indicators of data quality were assessed for each country and included the tim...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：/S0042-96862005000300009
更新日期：2005-03-01 00:00:00
abstract：OBJECTIVE:To determine the fraction of individuals with high total serum cholesterol who get diagnosed and effectively treated in eight high- and middle-income countries. METHODS:Using data from nationally representative health examination surveys conducted in 1998-2007, we studied a probability sample of 79 039 adult...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：10.2471/BLT.10.079947
更新日期：2011-02-01 00:00:00
abstract：:The choice of a specific and pure antigen is one of the many problems in the serodiagnosis of amoebic infection. Microbial associates in amoebic cultures have often given rise to confusing results in these tests. Entamoeba histolytica trophozoites grown axenically provide a useful source of antigen but the axenic medi...
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：:There have been 4 waves of imported malaria in the USA. They occurred during the colonization of the country and during the Second World War, the UN Police Action in Korea, and the Viet-Nam conflict. The first 3 episodes are briefly described and the data on imported malaria from Viet-Nam are discussed in detail.Endem...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1974-01-01 00:00:00
abstract：OBJECTIVE:To determine trends in the causes of death in a West African town. Mortality caused by infectious diseases is reported to be declining while degenerative and man-made mortality factors are increasingly significant. Most mortality analyses for sub-Saharan Africa have involved extrapolation and have not been de...
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：:Asthma is a very common chronic disease that occurs in all age groups and is the focus of various clinical and public health interventions. Both morbidity and mortality from asthma are significant. The number of disability-adjusted life years (DALYs) lost due to asthma worldwide is similar to that for diabetes, liver ...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：2005-07-01 00:00:00
abstract：:In a community study during a reference period of 1 year, 192 cases of jaundice were detected in an urban population of 69,440 in Alwar, Rajasthan. Detected by paramedics and confirmed by physicians, these cases gave an annual incidence of 2.76 (95% CI: 2.37-3.15) per 1000 population. At least one of these patients di...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1997-01-01 00:00:00
abstract：:In South-East Asia in recent years urbanization has proceeded rapidly. Because of limited financial resources it has seldom been possible to provide sufficient sanitation; this has led to conditions favourable to the breeding of Culex pipiens fatigans. The density of C. p. fatigans is higher in urban areas than in rur...
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：:The One Health concept covers the interrelationship between human, animal and environmental health and requires multistakeholder collaboration across many cultural, disciplinary, institutional and sectoral boundaries. Yet, the implementation of the One Health approach appears hampered by shortcomings in the global fra...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：10.2471/BLT.17.202705
更新日期：2018-03-01 00:00:00
abstract：OBJECTIVE:To determine the demographic and health impact of deploying health service nurses and volunteers to village locations with a view to scaling up results. METHODS:A four-celled plausibility trial was used for testing the impact of aligning community health services with the traditional social institutions that...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：10.2471/blt.06.030064
更新日期：2006-12-01 00:00:00
abstract：:Inherited resistance to anticoagulant rodenticides was discovered in populations of Rattus norvegicus about 14 years ago. Similar resistance has now been reported from several countries in north-western Europe and from the USA. In order to detect resistance and to control it effectively, basic data on the susceptibili...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1972-01-01 00:00:00
abstract：:Experimental studies in mice have provided evidence that antibody specific for viral neuraminidase markedly inhibits influenza virus replication in the lungs of animals challenged with virus containing homologous neuraminidase. In contrast to antihaemagglutinin antibody, antineuraminidase antibody does not increase re...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1969-01-01 00:00:00
abstract：:In many health facilities in east Africa, haemoglobin estimation is performed using visual colour comparison methods. Efforts to establish colorimetric methods face numerous constraints, including the unavailability of standards for quality control. In contrast, the alkaline haematin D-575 method for haemoglobin estim...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1994-01-01 00:00:00
abstract：:Eighteen patients with Plasmodium falciparum infection were studied in Port-au-Prince, Haiti, to monitor the response of the malaria parasite to sulfadoxine-pyrimethamine. In all infections the parasitaemia was cleared rapidly following treatment with standard dose of the drug combination; no recrudescence was observe...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1984-01-01 00:00:00
abstract：:Present methods of controlling meningococcal cerebrospinal meningitis have failed to contain the disease. This has led to the search for effective vaccines and to the development of methods for assaying the potency of these vaccines, as well as for measuring the immune response of the individual. The feasibility of us...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1969-01-01 00:00:00
abstract：:Low back pain is the leading cause of years lived with disability globally. In 2018, an international working group called on the World Health Organization to increase attention on the burden of low back pain and the need to avoid excessively medical solutions. Indeed, major international clinical guidelines now recog...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：10.2471/BLT.18.226050
更新日期：2019-06-01 00:00:00
abstract：:The magnitude of antigenic change of the Hong Kong strains from the earlier influenza A2 strains was compared with previous antigenic changes among the type A viruses. Representative type A strains recovered from man during the years 1933 through 1969 were examined by reciprocal haemagglutination-inhibition, neutraliz...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1969-01-01 00:00:00
abstract：OBJECTIVE:To assess the usefulness of the general framework of the smoking epidemic. METHODS:We use lung cancer mortality as an indicator for smoking intensity and employ an age-cohort model to accommodate the long-lasting and cumulative effects. RESULTS:Dutch males have higher risks than Danish males, but the risks ...
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 determine trends in mortality from respiratory disease in several areas of Latin America between 1998 and 2009. METHODS:The numbers of deaths attributed to respiratory disease between 1998 and 2009 were extracted from mortality data from Argentina, southern Brazil, Chile, Costa Rica, Ecuador, Mexico and P...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：10.2471/BLT.12.116871
更新日期：2013-07-01 00:00:00
abstract：:A follow-up study of coronary heart disease (CHD) was carried out among adults in Delhi 3 years after an initial community-based epidemiological survey of the same population. A total of 575 of the 814 cases of CHD detected clinically and by electrocardiogram (ECG) in the initial survey took part. On re-examination of...
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
