World TB Day was on March 24. If this were a blog about HIV/AIDS, I could write about the progress that Haiti and the rest of the world is making. However, this is a blog on tuberculosis and a fight we are losing. More than two billion people, one third of the world’s total population, are infected with TB bacilli, the microbes that cause TB. People living with HIV are at greater risk. For Haiti, much more remains to be done.