By Lydia Stephens Costco shoppers in the US have been issued an urgent warning due to a salmonella outbreak linked to its charcuterie meats. Federal health officials have recalled Fratelli Beretta brand Antipasto Gran Beretta and Busseto brand Charcuterie Sampler sold at Walmart’s Sam’s Club, after 47 cases of salmonella were reported in just two weeks. Investigations are ongoing to see if other meats are affected. An initial warning was issued on January 5 advising people not to eat one lot of Busseto brand Charcuterie Sampler. On Thursday, the CDC reported an additional 23 cases of salmonell…