The Weekly Epidemiological Record (WER) for 2 March 2012, vol. 87, 9 (pp 73–80) includes: Measles virus nomenclature update: 2012
The Weekly Epidemiological Record (WER) for 2 March 2012, vol. 87, 9 (pp 73–80) includes: Measles virus nomenclature update: 2012