Table 3.

Timeline (in days) of swab collection and epidemiologic information of five false negative discordant specimens

Patient	− 5	− 4	− 3	− 2	− 1	0	1	2	3	4	5	6	7	8	9	10	11	Exposed to confirmed case?	Healthcare worker?	Community- or healthcare-acquired?
1						DSO	S1			S2								Yes	Yes	Community-acquired
2						DSO		S1				S2						No	Yes	Community-acquired
3						DSO									S1		S2	Yes	No	Community-acquired
4						DSO, S1						S2						Unknown	No	Community-acquired
5	S1					DSO						S2						Yes	Yes	Community-acquired

Negative numbers indicate days before DSO; day 0 indicates DSO; positive numbers indicate days post-DSO

DSO date of symptom onset, S1 swab 1, S2 swab 2