Frequency of symptoms and signs associated with P. falciparum and P. vivax infections in the study population. Data shown are the percentages of malaria patients that reported every symptom (A) or presented with the listed signs (B). All patients reported more than one symptom or had more than one sign. Statistical differences between P. falciparum and P. vivax infections were calculated using the Chi-square test. *p value < 0.05, **p value < 0.01.