COVID-19 patient with an incubation period of 27 d: A case report

Table 1 Timeline of the disease course (April 5 to May 11, 2020)

Day of illness		1	2	3	6	7	8	10	11	13	17	20	21	27
Disease Course	Hospitalization	Close contact	The Fever Clinic											Positive PCR
White blood cell count (× 109/L)	9			6.87					8.67					8.62		9.69	6.63
Lymphocyte count (× 109/L)	0.47			0.55					0.73					0.24		0.18	0.12
Lymphocyte percentage (%)	5.2			8					8.42					2.82		1.92	1.8
Nucleic acid detection		Negative		Negative		Negative		Negative		Negative	Negative	Negative		Positive		Positive
Antibody detection IgM				Negative	Negative		Negative						Negative	Positive		Positive
Antibody detection IgG				Negative	Negative		Negative						Negative	Positive		Positive
Oxygen therapy															Oxygen therapy	HFNC	Invasive mechanical ventilation
CT	CT										CT		CT		CT		CT
Date	Apri l5	April 10	April 11	April 12	April 15	April 16	April 17	April 19	April 20	April 22	April 26	April 29	April 30	May 6	May 7	May 8	May 11

CT: Computed tomography; HFNC: High-flow nasal cannula; PCR: Polymerase chain reaction.