Respuesta :

heysdaddias123

Answer: Because if they come to America they can spread TB to many people.

Explanation: Tuberculosis (TB) strains in Russia carry mutations that not only make them resistant to antibiotics but also help them to spread more effectively.

maggiepersson62

Answer:

Tuberculosis (TB) strains in Russia carry mutations that not only make them resistant to antibiotics but also help them to spread more effectively, according to an analysis of 1,000 genomes from different TB isolates — one of the largest whole-genome study of a single bacterial species so far.Explanation: