15 julio 2015
Scientists have discovered a new variant of streptococcal bacteria that has contributed to a rise in disease cases in the UK over the last 17 years.img src=»http://feeds.feedburner.com/~r/sciencedaily/~4/MfK1M5AotDE» height=»1″ width=»1″ alt=»»/
http://feeds.sciencedaily.com/~r/sciencedaily/~3/MfK1M5AotDE/150715090838.htm
