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Prevention of TB involves screening those at high risk, early detection and treatment of cases, and vaccination with the bacillus Calmette-Guérin (BCG) vaccine. [3] [4] [5] Those at high risk include household, workplace, and social contacts of people with active TB. [4] Treatment requires the use of multiple antibiotics over a long period of ...
The WHO recommends childhood BCG for all countries with a high incidence of tuberculosis and/or high leprosy burden. [9] This is a partial list of historic and active BCG practices around the globe. A complete atlas of past and present practice has been generated. [50] As of 2022, 155 countries offer the BCG vaccine in their schedule. [51]
The US recommends that tuberculin skin testing is not contraindicated for BCG-vaccinated persons, and prior BCG vaccination should not influence the interpretation of the test. The UK recommends that interferon-γ testing should be used to help interpret positive Mantoux tests of over 5 mm, [ 20 ] and repeated tuberculin skin testing must not ...
He is widely published in tuberculosis epidemiology, diagnosis and control with media coverage including research on tuberculosis screening, [35] work showing high risk of TB in pregnancy and the postpartum period, tuberculosis and air travel, [36] and on the effects of BCG in TB prevention. [37]
Tuberculosis (TB) vaccines are vaccinations intended for the prevention of tuberculosis. Immunotherapy as a defence against TB was first proposed in 1890 by Robert Koch . [ 1 ] As of 2021, the only effective tuberculosis vaccine in common use is the Bacillus Calmette-Guérin (BCG) vaccine, first used on humans in 1921.
Low body weight is associated with risk of tuberculosis. A body mass index (BMI) below 18.5 increases the risk by 2 to 3 times. An increase in body weight lowers the risk. [14] People with diabetes mellitus are at increased risk of contracting tuberculosis, [15] and they have a poorer response to treatment, possibly due to poorer drug ...
The true scale of XDR-TB is unknown as many countries lack the necessary equipment and capacity to accurately diagnose it. By June 2008, 49 countries had confirmed cases of XDR-TB. [3] By the end of 2017, 127 WHO Member States reported a total of 10,800 cases of XDR-TB, and 8.5% of cases of MDR-TB in 2017 were estimated to have been XDR-TB. [2]
In 2007, the prevalence of TB per 100,000 people was relatively high in Asia, and was highest in sub-Saharan Africa. [3] [1] In China, tuberculosis has been the number 1 cause of death from infectious disease in adults. In 1990, 360,000 people in China died from tuberculosis. Tuberculosis is one of China's major public health problems.