Table 1.

Detection of canine distemper virus (CDV) RNA by real-time RT-PCR with corresponding viral genomic copy numbers.

	2019									2020
	February	March	April	May	July	August	September	October	November	January	February	June
Ct value	18.48	22.66	20.37	23.9	32.66	39.75	38.3	39.3	40	39.39	40	41
cRNA (n copies/μL)	2,510,955	207,819	813,841	99,235	536	<100	<100	<100	<100	<100	<100	<100