HARRISBURG, Pa. (AP) — Amid the Easter weekend surge in candy sales, AIDS activists are stepping up calls for a boycott of Hershey candy to protest the refusal of a boarding school with ties to the company to admit a teenager because he is HIV-positive.AIDS Healthcare Foundation staged protests Friday in San Francisco, New York City and Hershey, Pa., where company headquarters and the school are based. A lawsuit filed against the school is pending.The Milton Hershey School says the decision was appropriate. It said that despite the school's best efforts to teach abstinence, teenage students might still engage in sexual activity. It said: "When they do, they will be doing so on our watch."Milton Hershey School Trust funds the school and holds the controlling interest in the candy company.