WHO brings the entire expert together, it is always good to listen to them. - Alash'le Abimiku

If you look at the existence of the IHVN, it is based on obtaining funds and getting grants to do the work, but it does not exonerate the government from investing in research.

Also, physiologically as we grow our immune system also becomes weaker and more vulnerable to infection. Anytime a virus infects the body, it senses something foreign and starts to fight it.

Historically, when a bacterium, in this case, mycobacterium tuberculosis, is exposed for a period of time to drugs, it will develop a mechanism to continue to exist despite the drugs, hence, you see the resistance.