Categories twitter-es RT @WHO: Adding to the worsening of immunity gaps 🌎🌍🌏, 2⃣4⃣ #measles vaccination campaigns, originally planned for 2020, were postponedadmin - 12:33, 12 de noviembre de 2021292 0 RT @WHO: Adding to the worsening of immunity gaps 🌎🌍🌏, 2⃣4⃣ #measles vaccination campaigns, originally planned for 2020, were postponed bec… 0