Tag Archives: COVID-19 shot

Heart inflammation after COVID-19 shots higher-than-expected in study of U.S. military

By Carl O’Donnell

(Reuters) – Members of the U.S. military who were vaccinated against COVID-19 showed higher-than-expected rates of heart inflammation, although the condition was still extremely rare, according to a study released on Tuesday.

The study found that 23 previously healthy males with an average age of 25 complained of chest pain within four days of receiving a COVID-19 shot. The incident rate was higher than some previous estimates would have anticipated, it said.

All the patients, who at the time of the study’s publication had recovered or were recovering from myocarditis – an inflammation of the heart muscle – had received shots made by either Pfizer Inc and BioNTech SE or Moderna Inc.

U.S. health regulators last week added a warning to the literature that accompanies those mRNA vaccines to flag the rare risk of heart inflammation seen primarily in young males. But they said the benefit of the shots in preventing COVID-19 clearly continues to outweigh the risk.

The study, which was published in the JAMA Cardiology medical journal, said 19 of the patients were current military members who had received their second vaccine dose. The others had either received one dose or were retired from the military.

General population estimates would have predicted eight or fewer cases of myocarditis from the 436,000 male military members who received two COVID-19 shots, the study said.

An outside panel of experts advising the U.S. Centers for Disease Control and Prevention (CDC) said last week that reports of myocarditis were higher in males and in the week after the second vaccine dose than would be anticipated in the general population. A presentation at that meeting found the heart condition turned up at a rate of about 12.6 cases per million people vaccinated.

Eight of the military patients in the study were given diagnostic scans and showed signs of heart inflammation that could not be explained by other causes, the study said. The patients in the study ranged from ages 20 to 51.

The CDC began investigating the potential link between the mRNA vaccines and myocarditis in April after Israel flagged that it was studying such cases in people who received the Pfizer/BioNTech vaccine there, and after a report that the U.S. military had also found cases.

Health regulators in several countries are conducting their own investigations.

(Reporting by Carl O’Donnell; Editing by Bill Berkrot)

India AstraZeneca shot delay could be ‘catastrophic’ for Africa: health official

ADDIS ABABA (Reuters) – 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 on Thursday.

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 Union had planned to vaccinate 30-35% of the continent’s population by the end of the year he said. “If the vaccines are delayed we are unlikely to meet our target,” he added.

That AU target primarily relies on supplies from the global COVAX vaccine-sharing facility, through which 64 poorer countries including many in Africa are supposed to get doses from the SII. COVAX aims to provide enough shots for African countries to inoculate at least 20% of their populations.

“If the delay continues, I hope it’s a delay and not a ban, that would be catastrophic for meeting our vaccinations schedule,” Nkengasong said.

African countries have reported 4.25 million coronavirus infections and 112,000 related deaths, though experts have said the actual numbers could be higher.

The AU has also been negotiating with manufacturers to help member states secure the additional doses they will need to achieve 60% coverage.

On Monday, Johnson & Johnson announced it would supply the AU with up to 400 million doses of its COVID-19 vaccine. Delivery of those doses is due to begin in the third quarter of this year and will continue through 2022.

Those doses are separate from the GAVI/WHO-backed global COVAX facility.

Nkengasong said on Thursday the AU has “pivoted” towards the J&J shot in part as a result of the delay in the delivery of AstraZeneca shots, and also because it is a single-dose shot.

The J&J doses will begin to arrive in June or July, which will ease any shortage caused by the delay in the AstraZeneca doses, Nkengasong said. The gap until the arrival of the J&J doses is a concern, he added.

(Reporting by Addis Ababa newsroom; Writing by Maggie Fick; Editing by Andrew Heavens)