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. 2017 Dec 13;82(1):e00044-17. doi: 10.1128/MMBR.00044-17

FIG 5.

FIG 5

Summary of koala retrovirus (KoRV) statuses within a pedigree of 17 northern Australian koalas kept at the Los Angeles Zoo. Red koala symbols denote individuals positive for KoRV-A (which is ubiquitous in U.S. zoos), whereas the blue koala symbols denote individuals positive for KoRV-B (which is not ubiquitous) and KoRV-A. Dead joeys ejected from the maternal pouch are depicted within squares; each was positive for KoRV-B. Note that the pattern is consistent with maternal transmission of KoRV-B.