The baseline characteristics of both groups were similar The cure rate was 85.7 % in the doxycycline or chloramphenicol group , as compared to 79.3 % in the azithromycin group ( p = 0.73 ) , and a median time to defervescence was 30 hours ( IQR 21 , 48 ) vs. 36 hours ( IQR 20 , 68 ) respectively ( p = 0.166 ) .