Currently there is no effective method to treat EHP. Once infection is confirmed, very often it will stay, and the only way to deal with it is epidemic control and the implementation of biological preventive measures from breeding to farming. Confirm with PCR tests that the PL is not infected.
Anecdotal evidence suggest that EHP is more prevalent in grow-out ponds of whiteleg shrimp (Litopenaeus vannamei) where the salinity is high - >15 parts per thousand (ppt) - compared to grow-out ponds with low salinities (