I think it means "outbreaks of Ebola virus infection".
Student or Learner
Quote from VOA news:
A new report says sub-Saharan Africans rate their health and health care systems among the worst in the world. Nevertheless, improving health is not their top priority.
The report’s been released as Guinea, Liberia and Sierra Leone continue to fight the Ebola outbreak – a situation that was made worse by the poor state of their health systems.
Angus Deaton, co-author of the study, said, “I think most of us thought these episodes burnt out very quickly and this one didn’t. And I think that was surprising to a lot of people. But – and this is relevant for our work – health care systems in sub-Saharan Africa are very poorly organized and very badly done. And of course that certainly contributed to the difficulties of bringing it under control.”
What does "these episodes" refer to here?
The outbreak reported in the second paragraph.
There's a time line graph on this page