Epidemiologists at the University of Stellenbosch, near Cape Town, South Africa, have assembled a vast collection of tuberculosis strains. With it, they're revealing how drug-resistant strains evolve and spread through human populations. Charlie Schmidt reports.
机构:
Amer Univ, Sch Int Serv, Washington, DC 20016 USA
Carnegie Endowment Int Peace, Washington, DC 20037 USAAmer Univ, Sch Int Serv, Washington, DC 20016 USA