2.5. Some common diseases and their treatments

2.5.9. White spot syndrome (White spot Baculovirus – WSBV)

– Shrimp color can be switched to pink. Its capability of consuming feed reduces clearly.
– In shrimp body, round white spots appear under the shell and focus primarily on its carapace and the last abdominal segment.

– Shrimp swims lethargically near water surface and gathers around pond edges. Mortality occurs immediately after those signs. The mortality rate is very high, from 90-100% within 3-7 days.

Source: Temporary process for safe brackish-water shrimp farming in areas affected by diseases in Vietnam. According to The Official Dispatch No. 10/TCTS-NTTS. January 6th, 2015. Vietnamese Directorate of Fisheries

Viet Linh 2015. Translated by Sonia Linh V.