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Questions and Answers
Which of the following is the top cause of infectious death worldwide, excluding COVID-19?
Which of the following is the top cause of infectious death worldwide, excluding COVID-19?
- Infectious pulmonary TB
- Tuberculosis (correct)
- Bacteria of the Mycobacterium tuberculosis complex
- Mycobacterial Diseases
What is the curability rate of TB caused by drug-susceptible strains when properly treated?
What is the curability rate of TB caused by drug-susceptible strains when properly treated?
- Nearly 100% (correct)
- Less than 50%
- Around 30%
- Over 70%
How is TB most commonly transmitted?
How is TB most commonly transmitted?
- Through direct skin-to-skin contact
- Through sexual contact
- Through contaminated food
- Through the airborne spread of droplet nuclei (correct)
What is the genetic variability among M. tuberculosis strains from different parts of the world important for?
What is the genetic variability among M. tuberculosis strains from different parts of the world important for?
What is the likely age of emergence of M. tuberculosis based on population genomic studies?
What is the likely age of emergence of M. tuberculosis based on population genomic studies?
In how many cases can TB be eventually fatal if left untreated?
In how many cases can TB be eventually fatal if left untreated?
Which organs are involved in up to one-third of TB cases?
Which organs are involved in up to one-third of TB cases?
What is the purpose of pharmacological prophylaxis in relation to TB?
What is the purpose of pharmacological prophylaxis in relation to TB?
What lifestyle is indicated by the content (65.6%) of M. tuberculosis?
What lifestyle is indicated by the content (65.6%) of M. tuberculosis?
When did M. tuberculosis start to expand globally?
When did M. tuberculosis start to expand globally?
Which method was initially used for genotyping the bacterium in the 1990s?
Which method was initially used for genotyping the bacterium in the 1990s?
In 2019, how many new cases of TB were reported to the World Health Organization (WHO)?
In 2019, how many new cases of TB were reported to the World Health Organization (WHO)?
Which countries accounted for two-thirds of all new TB cases in 2019?
Which countries accounted for two-thirds of all new TB cases in 2019?
What percentage of TB cases occurred in male patients?
What percentage of TB cases occurred in male patients?
Which species of Mycobacteria is the most common and important agent of human disease?
Which species of Mycobacteria is the most common and important agent of human disease?
Which organism is characteristically resistant to pyrazinamide and was once transmitted by unpasteurized milk?
Which organism is characteristically resistant to pyrazinamide and was once transmitted by unpasteurized milk?
What is the size of M. tuberculosis, measured in micrometers?
What is the size of M. tuberculosis, measured in micrometers?
What characteristic justifies the classification of mycobacteria as acid-fast bacilli (AFB)?
What characteristic justifies the classification of mycobacteria as acid-fast bacilli (AFB)?
What is the estimated number of deaths from TB in 2019, including deaths among people with HIV co-infection?
What is the estimated number of deaths from TB in 2019, including deaths among people with HIV co-infection?
Which of the following organisms is NOT a member of the M. tuberculosis complex?
Which of the following organisms is NOT a member of the M. tuberculosis complex?
According to the text, what were some factors that contributed to the increase in reported cases of TB in high-income countries in the late 1980s and early 1990s?
According to the text, what were some factors that contributed to the increase in reported cases of TB in high-income countries in the late 1980s and early 1990s?
According to the text, what was the average decline rate of reported TB cases in the United States between 2007 and 2012?
According to the text, what was the average decline rate of reported TB cases in the United States between 2007 and 2012?
According to the text, what is the annual decline rate of reported TB cases in the United States between 2012 and 2019?
According to the text, what is the annual decline rate of reported TB cases in the United States between 2012 and 2019?
According to the text, what were the TB mortality rates in HIV-negative people in 2018?
According to the text, what were the TB mortality rates in HIV-negative people in 2018?
According to the text, what percentage of the MDR-TB cases worldwide may be XDR-TB?
According to the text, what percentage of the MDR-TB cases worldwide may be XDR-TB?
According to the text, why do the vast majority of XDR-TB cases remain undiagnosed?
According to the text, why do the vast majority of XDR-TB cases remain undiagnosed?
According to the text, what is the most common mode of transmission of M. tuberculosis?
According to the text, what is the most common mode of transmission of M. tuberculosis?
According to the text, what is the legal status of the countries, territories, cities, or areas mentioned in the text?
According to the text, what is the legal status of the countries, territories, cities, or areas mentioned in the text?
According to the text, why must information about cases deemed resistant to all anti-TB drugs be interpreted with caution?
According to the text, why must information about cases deemed resistant to all anti-TB drugs be interpreted with caution?
According to the text, what are the new definitions published by WHO?
According to the text, what are the new definitions published by WHO?
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