Diagnostic methods for typhoid fever in Nigeria

Area of Science:

• Infectious Diseases
• Tropical Medicine
• Public Health

Background:

• Typhoid fever, caused by Salmonella typhi, remains a significant public health concern, particularly in developing countries.
• Co-infection with malaria parasites is common in endemic regions, potentially complicating diagnosis and treatment.
• Accurate diagnostic methods are crucial for effective management of febrile illnesses.

Purpose of the Study:

• To investigate the prevalence of Salmonella typhi and malaria parasites in febrile patients in Nigeria.
• To evaluate the effectiveness of conventional diagnostic methods for typhoid fever.
• To determine the relationship between S. typhi infection, malaria co-infection, and demographic factors.

Main Methods:

• Screening of 65 patients (50 febrile, 15 control) for Salmonella typhi using conventional culture and the Widal test.
• Full blood count and malaria parasite screening were performed on all patients.
• Analysis of diagnostic test results, co-infection rates, and demographic data.

Main Results:

• Salmonella typhi was detected in 26% of febrile patients and 7% of controls.
• Malaria parasites were present in 64.3% of all patients, with Plasmodium falciparum being predominant.
• Co-infection with S. typhi and malaria parasites was observed in 9 patients, primarily females.

Conclusions:

• The study recommends integrating malaria parasite screening, S. typhi stool culture, and the Widal test for comprehensive typhoid fever diagnosis in Nigeria.
• Co-infection with malaria and typhoid fever is prevalent and requires consideration in clinical management.
• Early and accurate diagnosis is essential for controlling typhoid fever outbreaks.