L1E1N1T1I1V4I1R1U1S1E1S1
15 points
LENTIVIRUSES is validvalid
LENTIVIRUS, [n]
LENTIVIRUS, any of a group of retroviruses producing illnesses characterized by a delay in the onset of symptoms after infection [n]
LENTIVIRUS, [n]
LENTIVIRUS, any of a group of retroviruses producing illnesses characterized by a delay in the onset of symptoms after infection [n]