The White Home mentioned Wednesday that america would ship three million doses of Johnson & Johnson’s vaccine Thursday to Brazil, the place virus circumstances and fatalities are surging once more with the nation’s demise toll above 500,000.

Lower than a 3rd of the nation’s inhabitants has had at the very least one shot, and an average of 74,490 new cases per day have been reported within the nation within the final week — a rise of 26 % from the common two weeks in the past.

The vaccines, that are set to reach in Campinas, close to São Paulo, are a part of President Biden’s pledge to dispatch 80 million doses abroad by the tip of the month, a White Home official mentioned. The official added that “scientific groups and authorized and regulatory authorities” from america and Brazil had labored to safe the association.

The cargo to Brazil follows one to Taiwan final weekend: 2.5 million doses of Moderna’s vaccine. Mr. Biden, who has been beneath intense stress to extend his vaccine commitments overseas, introduced this month that his administration would purchase 500 million doses of the Pfizer-BioNTech vaccine and distribute them amongst about 100 nations over the subsequent yr.

Requested final week at a pandemic information convention whether or not the administration would ship vaccines to Brazil, Jeffrey D. Zients, the White Home Covid-19 response coordinator, mentioned that america was working with different nations on difficult logistical points, together with securing needles, syringes and alcohol pads that might accompany the drugs.

The Johnson & Johnson vaccine, which confers a high level of protection in opposition to virus circumstances, hospitalizations and deaths, has faced sagging demand in america. The Facilities for Illness Management and Prevention and the Meals and Drug Administration in April really useful a pause in its use after stories of a uncommon blood clotting dysfunction in a small quantity of people that had obtained the vaccine, a call that state officers mentioned had derailed curiosity within the shot.

And with manufacturing issues at a Baltimore plant operated by a subcontractor, Emergent BioSolutions, Johnson & Johnson has been capable of ship fewer than half of the 100 million doses it promised the federal authorities by the tip of this month. A bit of greater than half the Johnson & Johnson doses delivered to states to this point have been administered, in line with C.D.C. data.

Roughly two-thirds of the doses the U.S. is sending to Brazil are from a federal pool that holds vaccines states select to not order, the White Home mentioned. Round a 3rd of them have been produced at Emergent and not too long ago cleared by the F.D.A. in a special review of the ability and the doses produced there.

Earlier this month, the F.D.A.cleared round 10 million doses to be used within the U.S. or for export, with a proviso that regulators couldn’t assure that Emergent had adhered to manufacturing requirements.

Final week the company launched one other 15 million doses from Emergent. It’s nonetheless reviewing different batches of the vaccine to find out if they’re secure. A choice is predicted quickly.