INDIA’S temporary hold on major exports of AstraZeneca's COVID-19 shot will undermine Africa's vaccination plans, and could have a "catastrophic" impact if extended, the head of the continent's disease control body said yesterday. India decided to delay big exports of the shots made in its territory by the Serum Institute of India (SII) to make sure it could meet local demand, two sources told Reuters last week. The hold "will definitely impact our ability to continuously vaccinate people," the director of the Africa Centers for Disease Control and Prevention, John Nkengasong, told a news conference in Addis Ababa. The African…