Table Widal agglutinin titres in Nigerian patients with or without a positive malaria smear

Group Patients (n) 1:40 1:80 1:160
1 1-150(PMS, NSTC, LPTI)4585%12%3%
2 1-150(NMS, NSTC, LPTI)6945%15%10%
  • 1-150 PMS = positive malaria smear; NMS = negative malaria smear; NSTC = negative S typhi culture; LPTI = lack of prior typhoid immunisation.