杏吧原创

Do people who have recovered from regular tuberculosis have greater immunity to multi-drug-resistant TB?

Eileen Caiger Gray, Doncaster, South Yorkshire, UK

We pay 拢25 for every answer published in New 杏吧原创. To answer this question 鈥� or ask a new one 鈥� visit newscientist.com/lastword. Terms and conditions apply.

This article appeared in print under the headline 鈥淩esistance not futile?鈥�