Assertion: malaria's resistance | /r/CapableOf | become widespread
Facets:
value: in 1960s
type: TEMPORAL
value: in the 1950s
type: TEMPORAL
Source sentences:
text: Resistance of P. falciparum malaria parasites to previous generations of medicines, such as chloroquine and sulfadoxine-pyrimethamine (SP), became widespread in the 1950s and 1960s, undermining malaria control efforts and reversing gains in child survival.