Table 1.

Detection of KoRV-B by PCR in plasma, genomic DNA and using virus rescue assays

Koala no.	Age, y*	Plasma vRNA	Genomic DNA	Live virus rescue	Necropsy results
1	7.6	NA	—†	NA	Unknown
2‡	4.1	NA	+†	NA	Lymphoma
3‡	6.2	+	+§	+	—
4‡	5.4	+	+§	+¶	Lymphoma
5‡	5.5	+	+†	+	Lymphoma
6	11.1	—	—§	—	—
7	3.3	—	—§	—	—
8‡	1.8	+	+§	+	—
9	2.6	—	—†	—	—
10	11.1	—	—§	—	—
11	7.2	—	—§	—	—
12‡	0.1	NA	+†	NA	NA
13	0.5	NA	—†	NA	Pneumonia

NA, specimens not available.

^*Live koala ages are calculated as of January 31, 2013. The ages of deceased koalas reflect the age at death.

^†Tissue sample (koalas 1 and 13, liver; koalas 2 and 5, spleen; koala 12, joey dermis).

^‡KoRV-B–positive animal.

^§Whole blood sample.

^¶KoRV-A/B propagated in MDTF cells expressing appropriate receptors.