Response of extensively drug resistant Salmonella Typhi to treatment with meropenem and azithromycin, in Pakistan.

Patients treated with either Azithromycin, Meropenem alone or in combination showed similar time to defervescence. Because of the lower cost of azithromycin, it is preferable in lower socio-economic areas. Background estimates for power calculation can be made for more robust clinical trials using this observational data.