Horses born with the SCID virus have?
Technically horses with SCID, specifically Arabians are not born
with a virus. SCID is actually a genetic defect on chromosome #9.
The answer of no immune system is correct in a SCID horse with this
autosomal recessive defect can not produce T and B-lymphocytes,
which are part of a healthy immune system. An SCID foal will die
within weeks but most likely before five months of age, because
they can not fight off infection. Infection can come from:
bacteria, viruses, fungus. With a careful breeding plan, the birth
of an SCID foal can be prevented. no immune systym