Western Warnings Tarnish Vaccines the World Badly Wants

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South Africa immediately copied the American break in Johnson & Johnson vaccinations and enraged doctors who are still calling for gunshots, especially in remote parts of the country. In February, health officials dropped the AstraZeneca vaccine there because of its limited effectiveness against a dangerous variant.

To date, only half of 1 percent of the population is vaccinated and only 10,000 shots are fired a day. At this rate, it could be weeks, if not more, for a single rare case of blood clotting to occur, said Jeremy Nel, an infectious disease doctor in Johannesburg. He was dismayed by the decision to pause the shooting given the risk to vaccination confidence in a country where two-fifths of people say they have no vaccination intent.

“The slower you go, the more that failure is measured in terms of death,” said Dr. Nel. “Even if you are late by a week, there is a non-trivial chance that costs life.”

The solution in many European countries – to stop using apparently riskier vaccines in younger people who are less at risk of Covid-19 – would not be practical in Africa, where the average age in many countries is under 20.

Further restrictions would tighten the hurdles for Covax, including a lack of funding for any part of vaccination programs beyond doses at airports.

Mali, in West Africa, has administered 7 percent of the AstraZeneca doses administered by Covax. Sudan, East Africa, has administered 8 percent of the doses it received.

Analysts fear that dissatisfaction with AstraZeneca and Johnson & Johnson vaccines could fuel demand for recordings made in Russia and China, which are far less well known. Some global health officials have turned their attention to the Novavax vaccine, which is not yet approved but makes up a third of the Covax portfolio.

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