Table 3. Sequence homology of the 3D gene of Chinese CaKV strains and other reference strains at nucleotide levels.

Location	CaKV					Feline kobuvirus	Mouse kobuvirus	Human Aichi virus	Bird kobuvirus	Caprine kobuvirus	Porcine kobuvirus	Bovine kobuvirus
	Strains identified in this study	Compared with 12D049 strain (KF924623) from South Korea	Compared with CKoV/19c/2012/IT strain (KC693045)/ from Italy	Compared with AN211D strain (JN387133) from USA	Compared with B103 strain (KM068051) from Tanzania	Compared with FK-13 strain (KF831027) from South Korea	Compared with M-5 strain (JF755427) from USA	Compared with Chshc7 strain (FJ890523) from China	Compared with SZAL6-KoV/2011/HUN strain (KJ934637) from Hungary	Compared with 12Q108 strain (KF793927) from South Korea	Compared with Y-1-CHI strain (GU292559) from China	Compared with U-1 strain (AB084788) from Japan
Harbin	95.4–100%	95.6–98.6%	95.5–97.6%	94.9–96.3%	93.8–95.1%	84.5–85.4%	81.7–84%	79.9–80.8%	74.5–75.9%	70.8–71.1%	67.4–69%	70.1–71.3%
Daqing	96.3–98.1%	96.3–97.9%	94.3–96.7%	94.4–96.3%	92.6–94.7%	84.5–85.2%	82.2–82.6%	78.9–80.3%	74.3–75.5%	70.6–71.1%	67.4–68.3%	70.1–70.6%
Mudanjiang	97.2–99.1%	97.5–97.9%	95.7–96.4%	94.7–95.6%	93.3–94.0%	85.0–85.4%	81.7–82.6%	79.4–80.1%	74.3–74.8%	70.8–71.8%	67.4–68.1%	70.1–70.8%
Total	94.4–100%	95.6–98.6%	94.3–97.6%	94.4–96.3%	93.3–95.1%	84.7–85.4%	81.7–84%	79.6–80.6%	74.3–75.9%	70.6–71.8%	67.4–69%	70.1–71.3%