Tuberculosis (TB) 😷

“An ounce of prevention is worth a pound of cure.” – Benjamin Franklin.

The Prolonged Crowned Respiratory Infectious Agent

Time to read: 2 mins

Keras360’s TB web application analyzes the survival rates of a population while assessing the influence of latency on longevity. The model consists of five simulations, each categorized according to exposure characteristics. For children and young adults, the simulation incorporates a schedule for premature mortality resulting from TB exposure and includes interventional parameters such as vaccination aimed at critical health outcomes. The following simulations enable the exploration of secondary infections from TB and the delayed onset of active TB responses. TB latency can extend up to ten years, and exposure to a new TB strain is likely to precipitate a secondary infection.

Robust assumptions that align closely with real-world scenarios have been integrated into the calculations. It is crucial to note that when event-history analysis is applicable—particularly in relation to the duration of infectivity and secondary active TB —time-varying variables are included in the analysis (not presented in the video).

General guidance indicates that primary healthcare systems in both developed and developing countries have committed to ensuring that 95% of newborns receive vaccination against TB, specifically the BCG vaccine. At the time of this writing, a booster dose of BCG is not mandatory in most countries. While BCG demonstrates good coverage, its effectiveness significantly diminishes after 20 to 30 years, although a limited number of individuals may sustain immunity against TB for up to 40 years. Treatment can last up 18 months for drug resistance-strains, a component which is considered, but not presented in this calculator. Fatality remains high among infected elderly; >10% .

This interactive basic calculator UI may be made available on the website (free access) in 2027.

Music by ColdPlay : Viva la Vida.