Table:
Subject ID	Exposure date	Sampling date	Status at exposure	Exposed MERS case ID1	Underlying disease	Symptoms after exposure	ELISA	IFA	PRNT
Ratio	Result
1	May 15	Nov 1	Patient	#1	Angina	None	0.996	Borderline	Positive	Positive
2	May 16	Nov 2	Patient	#1	None	None	2.078	Positive	Negative	Negative
3	May 15	Nov 2	Healthcare worker	#1	None	Fatigue	1.640	Positive	Negative	Negative
4	Jun 9	Oct 31	Patient	#118	Hypertension	Blurred vision	1.116	Positive	Negative	Negative
5	Jun 4	Nov 8	Patient	#89	Hypertensive heart disease	None	0.916	Borderline	Negative	Negative
6	Jun 5	Nov 9	Patient	#89	Lumbar spinal Fatigue stenosis	1.724	Positive	Negative	Negative
7	Jun 11	Nov 8	Patient	#89	None	Fatigue and	0.985	Borderline	Negative	Negative

Transcribe the illustration into Markdown format.

| <ROWSPAN=2> Subject ID | <ROWSPAN=2> Exposure date | <ROWSPAN=2> Sampling date | <ROWSPAN=2> Status at exposure | <ROWSPAN=2> Exposed MERS case ID1 | <ROWSPAN=2> Underlying disease | <ROWSPAN=2> Symptoms after exposure | <COLSPAN=2> ELISA | <ROWSPAN=2> IFA | <ROWSPAN=2> PRNT | 
 | Ratio | Result | 
 | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | 
 | 1 | May 15 | Nov 1 | Patient | #1 | Angina | None | 0.996 | Borderline | Positive | Positive | 
 | 2 | May 16 | Nov 2 | Patient | #1 | None | None | 2.078 | Positive | Negative | Negative | 
 | 3 | May 15 | Nov 2 | Healthcare worker | #1 | None | Fatigue | 1.640 | Positive | Negative | Negative | 
 | 4 | Jun 9 | Oct 31 | Patient | #118 | Hypertension | Blurred vision | 1.116 | Positive | Negative | Negative | 
 | 5 | Jun 4 | Nov 8 | Patient | #89 | Hypertensive heart disease | None | 0.916 | Borderline | Negative | Negative | 
 | 6 | Jun 5 | Nov 9 | Patient | #89 | Lumbar spinal Fatigue stenosis |  | 1.724 | Positive | Negative | Negative | 
 | 7 | Jun 11 | Nov 8 | Patient | #89 | None | Fatigue and | 0.985 | Borderline | Negative | Negative |