Thirteen Jersey Shore beaches were declared safe for swimming on Wednesday after having high counts of fecal coliform, or bacteria that live in the intestines of animals, discovered earlier in the week. Fecal coliform frequently do not make people sick on their own, but health agencies use them as an indicator that other harmful bacteria, viruses or parasites may be present in water. Among the beaches that tested high for those levels were Albany Avenue Beach in Atlantic City, Philadelphia Avenue Beach in Cape May, and Hollywood Avenue Beach in Wildwood Crest.