Table 2.

Nucleotide identity of four human coronaviruses.

Virus	Nucleotide identity (%)
	CDS	1ab	S	E	M	N
Alphacoronavirus
HCoV-NL63	95.8–99.8	95.4–99.8	95.4–99.8	95.4–100	95.4–100	95.4–100
	(96.2)	(95.8)	(96.2)	(98.3)	(98.5)	(99.0)
HCoV-229E	98.1–99.9	98.4–99.9	96.1–99.9	99.1–100	97.9–100	97.4–100
	(99.7–100)	(99.7–100)	(99.8–100)	(100)	(99.4–100)	(99.4–100)
Betacoronavirus
HCoV-HKU1	93.3–99.3	95.8–99.2	84.2–99.8	85.9–99.6	92.0–100	93.3–100
	(93.5)	(96.0)	(84.1)	(85.9)	(92.1)	(93.4)
HCoV-OC43	97.3–100	97.5–100	94.4–100	89.7–100	94.8–100	91.1–100
	(97.9–99.8)	(98.4–99.8)	(94.6–99.8)	(90.5–100)	(99.0–100)	(98.5–100)

The values in parentheses indicate nucleotide identity between sequences obtained in this study.