C2 noun /ˌriːkruːˈdɛsəns/
recrudescence
рекрудесценция
Meaning
a new outbreak or revival of something that had subsided, especially an undesirable condition
Example
Health officials warned of a recrudescence of measles in several districts.
Сотрудники здравоохранения предупредили о повторном всплеске кори в нескольких районах.