Older hogs mostly get sick and lose weight after being infected, whereas newborn piglets usually die within five days of contracting the virus.

It was first discovered in Europe, but has become increasingly problematic in Asian countries, such as Korea, China, Japan, the Philippines, and Thailand.

[2] PEDV has a substantial economic burden given that it is highly infectious, resulting in significant morbidity and mortality in piglets.

Pre-weaned piglets shed large amounts of virus in their feces resulting in rapid spread and high mortality rates.

Diagnosis of PED is confirmed using PCR from feces or intestines of affected animals, or by immunohistochemistry on formalin-fixed tissue.