Potts therefore decided on 24 August that anti-malarial precautions were no longer necessary .
Fortunately , the climate in the Owen Stanley Range was not favourable to mosquitoes , and most cases were relapses by men infected in Port Moresby or Syria .
Potts decided on 24 August that anti-malarial precautions were no longer necessary .
Fortunately , the climate in the Owen Stanley Range was not favourable to mosquitoes , and most cases were relapses by men infected in Port Moresby or Syria .