Epidemiological Evaluation of the Spatio-Temporal Patterns and Risk Factors Contributing to the Incidence of White Spot Syndrome Virus (WSSV) and the Acute Necrosis of Hepatopancreas Syndrome (ANHS) in Whiteleg Shrimp (Litopenaeus vannamei) in Sinaloa State, Mexico. 

Sinaloa is one of the Mexican states with the highest production of farmed shrimp. The appearance of the white spot syndrome virus (WSSV) infection in Mexico in 1999 had a significant economic impact due to the high mortality rate. During the last decade different strategies have been implemented for production and health management by the Aquaculture Health Committees that have reduced the economic impact, however there are still factors that are contributing to the occurrence of WSSV outbreaks, which highlights the need to conduct further investigations to establish more effective control programs. Moreover, in 2013 a new syndrome was introduced, the acute hepatopancreatic necrosis syndrome (AHPNS), whose etiology is a specific pathogenic strain of Vibrio parahaemolyticus which has been devastating the shrimp productions with estimated losses over USD$35.7 million and, as consequence, production have reach levels of 1999. The Committee on Aquaculture Health of Sinaloa (CESASIN) has a detailed dataset with management and health information from the last 8 years.

This multi-institutional project aims to better understand the spatiotemporal patterns of disease presentation and the risk factors for WSSV and ANHS occurrence. The ultimate goal is to provide valuable information to support better prevention and control of these two important diseases affecting shrimp industry worldwide.