Masako Ohmori

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SETTING Newly notified cases of tuberculosis (TB) for 5 years (1998 and 2000-2003) in Japan. OBJECTIVE To study the seasonality of notification for various forms of TB. DESIGN Descriptive analyses of newly notified cases by month of the year. Seasonal variations were compared among various forms of TB. RESULTS In almost all the forms of TB examined,(More)
OBJECTIVE To observe the recent epidemiological trend of tuberculosis and to determine the factors related to the deteriorating trend in incidence and mortality rates in Japan. DESIGN Descriptive analyses of tuberculosis notification rates and mortality rates by age, sex, year and birth-cohort. RESULTS The decline in the tuberculosis notification rate(More)
PURPOSE Investigate drug resistant rate in recurrent cases after cure, or after drop-out from treatment, and the analysis of the risk factors for acquired drug resistance in these cases. OBJECT Patients who were previously treated for tuberculosis that was drug sensitive or unknown about previous drug sensitivity, and were hospitalized to Fukujuji(More)
The time of eradication of tuberculosis has been discussed for several countries, and based on those results, a new strategic plan and goals have been elaborated. Considering such developments, and in order to make a new tuberculosis control strategy, it is important to determine the point at which eradication of tuberculosis would be achieved in Japan.(More)
UNLABELLED The aim of this research was to clarify epidemiological characteristics of nontuberculous mycobacteriosis deaths in Japan. We analyzed the frequency of deaths due to nontuberculous mycobacteriosis (NTM) and regional differences using the Vital Statistics of Japan, published by the Ministry of Health, Labour and Welfare. The crude death rate was(More)
SETTING Nationwide tuberculosis (TB) registry in Japan, 1987-2002. OBJECTIVE To clarify the trends of patient's delay (PD), doctor's delay (DD) and total delay (TD), their relation and factors associated with the delays. DESIGN Longitudinal study on trends in delays. Among patients with symptomatic smear-positive pulmonary TB, those with long PD (> or(More)
The system of tuberculosis (TB) case-finding by mass miniature radiography (MMR) was established and expanded for almost all Japanese citizens in the 1950s. And, as stipulated by the TB Prevention Law, periodic mass screenings for schools, inhabitants, employees and institutions have been carried out. Among those aged over 25 years, the proportion of people(More)
The mortality from tuberculosis in Japan had extremely decreased from the end of the 1940's to the beginning of the 1950's, due to the end of chaos after World War II and also due to the introduction of antituberculosis drugs. The rapid decline of mortality usually leads to the reduction in the infection risk of tuberculosis in the general population. Such(More)
OBJECTIVES To report on the mass outbreak of tuberculosis (TB) in an urban area and to discuss current issues regarding the problem of TB in the metropolis. MATERIALS AND METHODS Case studies were mainly carried out. Discussions on the route of infection are based on the results of DNA fingerprinting analysis for M. tuberculosis and on information(More)
BACKGROUND From 2003 through to 2004, an outbreak of tuberculosis was identified at a university campus in Yokohama City, located in the southern part of the Tokyo Metropolitan Area (TMA). All Mycobacterium tuberculosis (M. tuberculosis) strains detected with regards to this outbreak turned out to be Streptomycin resistant with matched patterns of 14 IS6110(More)