Parallel germline infiltration of a lentivirus in two Malagasy lemurs.
Retroviruses normally infect the somatic cells of their host and are transmitted horizontally, i.e., in an exogenous way.Occasionally, however, some retroviruses can also infect and integrate into the genome of germ cells, which may allow for their vertical inheritance and fixation in a given species; a process known as endogenization.Lentiviruses,