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United States

Texas—First Report of EMS/AHPND in USA


The World Organization for Animal Health (OIE), a reference organization responsible for improving animal health worldwide, reports that acute hepatopancreatic necrosis disease (AHPND) has been reported in the USA for the first time.  The source of the outbreak or origin of infection is unknown or inconclusive.  The USA Department of Agriculture Animal and Plant Health Inspection Service Veterinary Services and the Texas Parks and Wildlife Department are conducting an epidemiological investigation of the event.

Location of the Outbreak: Cameron County, Cameron, Texas, on June 14, 2017.


Control Measures: Movement control inside the country, quarantine, destruction of animals, no treatment of infected animals.


Measures To Be Applied: Disinfection.


Diagnostic Laboratory: University of Arizona (an OIE Reference Laboratory).

Diagnostic Test: Polymerase chain reaction (PCR) and histopathological examination, both positive on July 21, 2017.


Species: Pacific white shrimp (Penaeus vannamei).


Reported to OIE by: Dr. John Clifford, official delegate, chief trade advisor, Animal and Plant Health Inspection Service, United States Department of Agriculture, Washington, DC, USA.

Source: The World Organization for Animal Health (OIE).  Subject: Acute hepatopancreatic necrosis disease, United States of America.  August 23, 2017.


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