Not even for the doctors and nurses like her, who care for COVID-19 patients in Chad, one of the least-developed nations in the world where about one third of the country is engulfed by the Sahara desert.

Those last in line on the continent along with Chad are Burkina Faso, Burundi, Eritrea and Tanzania.

“Delays and shortages of vaccine supplies are driving African countries to slip further behind the rest of the world in the COVID-19 vaccine rollout and the continent now accounts for only 1% of the vaccines administered worldwide,” WHO warned Thursday.

While the total of confirmed COVID-19 cases among them is relatively low compared with the world’s hot spots, health officials say that figure is likely a vast undercount: The countries in Africa still waiting for vaccines are among those least equipped to track infections because of their fragile health care systems.

A few of the countries, though, including Chad, have expressed concerns about receiving the AstraZeneca vaccine through COVAX for fear it might not protect as well against a variant first seen in South Africa.

Those delays, though, now mean an even longer wait for places like Burkina Faso, since a key vaccine manufacturer in India scaled back its global supply because of the catastrophic virus surge there.

“Now with global vaccine supply shortages, stemming in particular from the surge of cases in India and subsequently the Indian government’s sequestration of doses from manufacturers there, Burkina Faso risks even longer delays in receiving the doses it was slated to get,” said Donald Brooks, CEO of a U.S.

Front-line health workers in Burkina Faso say they’re not sure why the government hasn’t secured vaccines.

Haiti was slated to receive 756,000 doses of the AstraZeneca vaccine via COVAX, but government officials said they didn’t have the infrastructure needed to conserve them and worried about having to throw them away.

Vanuatu, with a population of 300,000, is waiting to receive its first doses of the AstraZeneca vaccine later this month, but it has recorded only three cases of coronavirus, all of them in quarantine.

At the Farcha hospital in Chad, nine health care workers have gotten the virus, including Dr.