High levels of imported asymptomatic malaria but limited local transmission in KwaZulu-Natal, a South African malaria-endemic province nearing malaria elimination

Table 3 Insecticide susceptibility status of Anopheles mosquito samples^a collected from potential breeding sites within uMkhanyakude district, KwaZulu-Natal, during the prevalence survey in 2018

Species	Insecticide	Number of mosquitoes tested	% mortality 24 h post exposure	Susceptibility status
An. gambiae complex^b	4% DDT	20	100	Susceptible
An. pretoriensis	4% DDT	11	100	Susceptible
An. arabiensis	0.05% Deltamethrin	5	80	Resistant
An. pretoriensis	0.05% Deltamethrin	7	85.7	Resistant

^a Larvae of mixed gender were reared to adulthood (2–3 days old) in the Jozini insectary and subjected to the standard WHO insecticide susceptibility testing assay
^bSpecies identification was not confirmed by PCR

ISSN: 1475-2875