Fever origins in the tropics

Area of Science:

• Infectious Diseases
• Internal Medicine
• Epidemiology

Background:

• Fever is a common symptom with diverse etiologies.
• Identifying the primary causes of fever is crucial for effective clinical management and public health strategies.
• Previous studies in sub-Saharan Africa highlight the prevalence of infectious causes of fever.

Purpose of the Study:

• To prospectively investigate and identify the etiological agents responsible for fever in adult patients.
• To determine the relative frequency of different causes of fever in a hospital setting in Kinshasa, Zaire.
• To provide data that can inform diagnostic and treatment protocols for febrile illnesses in the region.

Main Methods:

• A prospective study was conducted on 300 adult patients presenting with fever.
• Patients included both inpatients and outpatients at Kinshasa Teaching Hospital.
• Data collection focused on identifying the underlying causes of fever for each participant.

Main Results:

• Infection was identified as the predominant cause of fever, accounting for 87% of cases.
• Malaria was the most frequent febrile illness, diagnosed in approximately 50% of patients.
• Tuberculosis was observed in 15% of the hospitalized patients.
• Non-infectious causes, such as connective tissue diseases and neoplasms, were found to be rare.

Conclusions:

• Infectious agents are the primary drivers of fever in the studied adult population in Kinshasa.
• Malaria represents a significant public health burden, being the leading cause of febrile illness.
• The findings underscore the importance of diagnostic efforts focused on infections, particularly malaria and tuberculosis, in febrile patients in this region.