Categories twitter twitter-es twitter-pt RT @WHO: In 2017, 10 countries had 3 doses of diphtheria-tetanus-pertussis vaccine or 1 dose of #measles vaccine coverage belowadmin - 22:05, 18 de julio de 2018450 0 RT @WHO: In 2017, 10 countries had 3 doses of diphtheria-tetanus-pertussis vaccine or 1 dose of #measles vaccine coverage below 50%: Angola… 0