No medications were affected, but if new prevention items are not procured, aid groups fear a surge in new infections next year.

© Anatolii Stepanov/Reuters

Nigeria, a coastal country in western Africa, was landlocked in the Sahara, among other errors. The department said it had been “hastily altered.”

© Picture Obtained By Reuters/UGC

Nigeria, a coastal country in western Africa, was landlocked in the Sahara, among other errors. The department said it had been “hastily altered.”

© Picture Obtained By Reuters/UGC

Companies in Africa and India will make generic versions of the pill that could cost as little as $5 per person per year. But access to the drug and other new products in much of Latin America remains uncertain.

© Arlette Bashizi for The New York Times

Companies in Africa and India will make generic versions of the pill that could cost as little as $5 per person per year. But access to the drug and other new products in much of Latin America remains uncertain.

© Arlette Bashizi for The New York Times

New research also shows that children and high-risk adult populations have been particularly affected.

© Joao Silva/The New York Times