CME cattle futures experienced volatility due to concerns about H5N1 avian influenza in ground beef samples, but stabilized towards the end of the week. The markets closed lower for the week despite initial rallies after the USDA confirmed that the samples tested negative. The concern had initially caused worries about consumer demand. The USDA is conducting further safety studies on beef related to H5N1 and has implemented new requirements for lactating dairy cattle to test negative for the virus before being shipped across state lines. A Texas dairy farm worker has been infected with the virus, highlighting the ongoing risk.