Related Experiment Video
Updated: Jun 5, 2025

Diagnosing Pulmonary Tuberculosis with the Xpert MTB/RIF Test
Published on: April 9, 2012
Verification of Sub-national Claim for 'TB-free' Status of Rajsamand District, Rajasthan, India-2020
Kalika Gupta1, Mitin Parmar2, Kush Davda3
1Department of Community Medicine, Ananta Institute of Medical Sciences and Research Center, Rajsamand, Rajasthan, India.
Background:
Tuberculosis (TB) caused by Mycobacterium tuberculosis is an opportunistic infection that affects the lungs in humans. Caseload of TB has been deemed it endemic in various regions of the world and India is on top of that list. The Government of India has set out a goal to eliminate tuberculosis in India by the year 2025 with the help of the National Strategic Plan (NSP) 2017-25. The objective of the index study was to verify the claim of Rajsamand district in Rajasthan, that it witnessed a >20% reduction in TB incidence between 2015 and 2020.
Methodology:
This was a mixed-methods study. Quantitative component (cross-sectional study): Secondary data review (review of records from Nikshay notification systems and National tuberculosis elimination program (NTEP) reports, utilization of drugs in the public sector, and drug sales in the private sector). Primary data collection through survey. Qualitative component: nominal group technique and key informant interviews.
Result:
Percentage decline of a ≥ 20% incidence in 2020 compared to baseline 2015 was not seen. The number needed to test (increased by 18.26% in 2020 as compared to the baseline of 2015. TB Score of Rajsamand district for the year 2020 was 68.34 out of 100.
Conclusion:
Rajsamand district's claim of ≥20% reduction in TB incidence in the year 2020, was rejected.
Related Concept Videos
Pulmonary Tuberculosis V
Latent tuberculosis infection occurs when TB bacteria are present in a person's body, but are not causing illness or symptoms. It is not contagious, and preventive treatment is crucial to avoid the...
Pulmonary Tuberculosis I
Causative Organism
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
Mode of...
Pulmonary Tuberculosis III
The first classification is based on the development of the disease, and it includes the following categories:
Pulmonary Tuberculosis II
Here is a detailed explanation of its pathophysiology:
Transmission: The process begins when a person inhales droplet nuclei containing M. tuberculosis. These are typically released into the air when an individual with pulmonary or...
Pulmonary Tuberculosis IV
Several diagnostic approaches are used to detect TB. The conventional method is the Tuberculin Skin Test (TST), also known as the Mantoux test. However, this method has...
Testing a Claim about Population Proportion
There are two methods of testing a claim about a population proportion: (1) Using the sample proportion from the data where a binomial distribution is approximated to the normal distribution and (2) Using the binomial probabilities calculated from the data.
The first method uses normal distribution as an approximation to the binomial distribution. The requirements are as follows: sample size is large...

