Just returned from the Comoros Islands where a Chinese team treated one island population with artemesimine and piperaqine (in short artequik) except pregnant women who were treated with piperaqine only. The theory is that treatment is prevention and if no person is infected then the vector cannot transmit the anopheles. The baseline malaria prevalence prior to this massive treatment campaign was 24% and dropped after three months to 0.02%. However WHO is not approving or recommending this strategy. How efficacious and sustainable this strategy is in the medium term is not known today.