I'd say "will still be active". Look at MERS, SARS, H1N1, ..., active for much longer than I'd imagined; AFAICT in those cases the crises left the news long before they stopped being a widescale medical issue that needed special interventions.
MERS peaked in 2014 (and 2015, 2016, ...), but there are still cases.
MERS peaked in 2014 (and 2015, 2016, ...), but there are still cases.