Classic malaria symptoms include which of the following?

Classic malaria symptoms include which of the following?

• A. Low grade fever, upper respiratory congestion, cough
• B. Annular rash, conjunctivitis, headache, arthralgia
• C. High fever, chills, rigors, sweats, headache
• D. High fever, jaundice, lethargy, vomiting

Answer: (C)

Malaria presents with paroxysms of fever—high fever with chills and rigors—followed by sweating, often accompanied by a headache. This fever pattern reflects the parasite’s life cycle, where merozoites are released in waves from red blood cells, causing successive spikes. While the exact interval can vary by Plasmodium species (commonly 48- or 72-hour cycles), the hallmark is the sequence of fever with intense chills and then heavy sweating, plus headache. The other symptom patterns don’t fit malaria as neatly. An upper-respiratory–predominant picture with cough and congestion points to a viral URI or pneumonia. A rash with conjunctivitis and arthralgia suggests different infectious syndromes (such as certain rickettsial or viral illnesses). Jaundice with lethargy and vomiting can occur in severe malaria, but the classic, most recognizable presentation centers on the cyclical fever with rigors and sweating, often with headache. In a child who has traveled to an malaria-endemic area, this pattern should raise strong suspicion and prompt testing and treatment.

Malaria presents with paroxysms of fever—high fever with chills and rigors—followed by sweating, often accompanied by a headache. This fever pattern reflects the parasite’s life cycle, where merozoites are released in waves from red blood cells, causing successive spikes. While the exact interval can vary by Plasmodium species (commonly 48- or 72-hour cycles), the hallmark is the sequence of fever with intense chills and then heavy sweating, plus headache.

The other symptom patterns don’t fit malaria as neatly. An upper-respiratory–predominant picture with cough and congestion points to a viral URI or pneumonia. A rash with conjunctivitis and arthralgia suggests different infectious syndromes (such as certain rickettsial or viral illnesses). Jaundice with lethargy and vomiting can occur in severe malaria, but the classic, most recognizable presentation centers on the cyclical fever with rigors and sweating, often with headache. In a child who has traveled to an malaria-endemic area, this pattern should raise strong suspicion and prompt testing and treatment.