A case of an asymptomatic Plasmodium falciparum infection followed by a symptomatic Plasmodium ovale infection in a soldier deployed to South Sudan

Table 1 Laboratory test results of a 25-year-old soldier diagnosed with malaria

Date	Microscopy	Immunochromatography for malaria		Q-PCR		C-PCR
Date	Peripheral blood smear	Pan-Plasmodium specific antigen	P. falciparum specific antigen	P. falciparum_msp1	P. ovale_msp1	18S rRNA (950 bp)
Mar 23rd	Gametocyte of P. falciparum	−	+	35.89	UD	−
Apr 3rd	No abnormalities	+	+	33.04	UD	+ (P. falciparum)
Apr 12th	No abnormalities	−	+	UD	UD
Apr 19th	-	−	−	UD	UD
Apr 26th	-	−	+	37.78	UD
May 8th	Gametocytes	+	−	UD	21.89	+ (P. ovale)
May 10th	Gametocytes	−	−	–	–	−
May 15th	Gametocytes	−	−	–	–	−
May 12th	–	−	−	UD	29.86	+ (P. ovale)
Jun 7th	No abnormalities	−	−	UD	UD	−
July 3rd	No abnormalities	−	−	–	–	−

The table presents the findings from peripheral blood smears, rapid antigen tests using pan-Plasmodium-specific antigen and P. falciparum-specific antigen, real-time PCR targeting the msp1 gene for P. falciparum and P. ovale, conventional PCR targeting the 18S rRNA gene, and sequencing results
Q-PCR, quantitative polymerase chain reaction; C-PCR, conventional PCR; + , positive; −, negative; UD, undetermined

ISSN: 1475-2875