Table 2. Time of most recent common ancestor (tMRCA) for HCoV-OC43 genotypes A to G estimated based on the spike (S) gene and full-length genome.

Genotype	tMRCA (95% HPD)
	Spike (S) gene	Full-length genome
A	1963.8 (1959.4–1966.7)	1964.7 (1960.3–1966.8)
B	1999.1 (1996.6–2001.5)	1999.0 (1993.5–2002.6)
C	1997.2 (1994.0–1999.7)	1998.0 (1994.3–2000.5)
D	1997.3 (1994.2–2000.4)	1999.3 (1996.5–2001.5)
E	2007.9 (2005.9–2009.4)	2003.3 (1999.1–2006.9)
F	2010.8 (2010.0–2011.4)	2009.8 (2008.1–2011.2)
G	2010.7 (2010.0–2011.4)	2010.1 (2008.5–2011.4)

Abbreviation: highest posterior density, HPD.