May 19, 2026

Inside the front section of Sunday’s local newspaper was a USA Today article on an outbreak of a virus thought to have been eliminated in the US in 2004. An Iowa pig (Sus domesticus) producer received fire affected boars from an outdoor facility in Texas where they may have been in contact with feral swine. The US Department of Agriculture (USDA) is working with the two commercial herds and about 100 pigs were destroyed in Iowa to prevent further spread of the disease. The USDA did not report how many pigs were destroyed in Texas. This is especially concerning in Iowa, which is the nation’s largest producer of pork. The virus can kill or stunt the growth of hogs or cause abortions or still births in sows and resulted in tens of millions (US) of dollars in losses. Pat McGonegle, CEO of the Iowa Pork Producers Associations said they appreciate the government’s aggressive actions to get the disease “stamped out as quickly as possible.” The Iowa department of Agricultural said, “pseudorabies is still found in wild or feral swine populations, which remain a potential threat of exposure for domestic pigs.”
When I went online, I found pseudorabies (Aujeszky’s disease), usually called in the US, is a viral disease in swine caused by pseudorabies virus (PRV). The disease is constantly present or maintained at a baseline level (endemic) in most parts of the world. Pseudorabies is considered the most economically important viral disease of swine in areas where classical swine fever (hog cholera) has been eradicated. Research on PRV in pigs has pioneered animal disease control with genetically modified marker vaccines lacking an antigen, which allow for immunological differentiation of infected from vaccinated animals. PRV is now used in model studies of basic processes during lytic herpesvirus infection, the stage where the virus is actively replicating within the host cell, and for unravelling molecular mechanisms of herpesvirus neurotropism. Other mammals, such as cattle, sheep, goats, cats, dogs, and raccoons, are also susceptible. The disease is usually fatal in these animal species.
State and federal officials are expected to monitor 20 to 30 farms near the outbreak in Iowa to ensure the virus has not spread. The USDA said, “detection does not pose a risk to consumer health, not affect the safety of the commercial pork supply.” While pseudorabies can infect other mammals, pigs are the only known host. While usually thought to be safe, humans can contract pseudorabies from pigs. However, the overall risk is extremely low and limited almost entirely to those handling raw, infected pig meat or working closely with infected swine. The euthanized pigs are not allowed to enter the US food supply. The state agriculture department in Iowa has spent years preparing for these animal health events and has a strong team to respond. Mike Naig, Iowa Agriculture Secretary, said, The United States pork supply remains safe and secure.”
THOUGHTS: The pseudorabies virus was quickly identified in the US, and immediate action was taken to eliminate any threat. When the Ebola virus was identified in the DR Congo and Uganda last week there had already been 100’s of suspected cases and dozens of suspected deaths stretching over weeks. The consequences of delay could prove catastrophic as there are no vaccines or treatments for the rare species of Ebola Bundibugyo responsible for the current outbreak. One American health worker has contracted the virus, and six others have been exposed, and all have been removed from the area. The Centers for Disease Control and Prevention (CDC) has issued travel warnings and introduced restrictions prohibiting non-US citizens who have been in DR Congo, Uganda, or South Sudan in the last 21 days from entering the US. Seems none of this is our problem if we keep others out. Sounds like the US response to covid. Act for all. Change will come and it starts with you.








