Domesticated P. monodon broods are unavailable in Bangladesh and
hatcheries are completely dependent on wild broods captured from the
Bay of Bengal. However, unlike domesticated broodstock, which can be
raised in a controlled, disease free environment, wild broodstock are
frequently exposed to or infected by pathogens, including WSSV.
WSSV can be vertically transmitted from WSSV-positive spawners to
their offspring ( Lo et al., 1996b).