Unionized Chronicle workers have ratified a new contract that includes a fourth week of vacation, five more sick days a year and an increase the minimum pay in all categories by 1.5%, according to the Guild. The new contract had no new rollbacks and editorial assistants will get a 5% raise next month, the Guild reported. “The biggest disappointment was lack of an increase to cover the rising cost of health care, which will most likely become a problem before the end of 2011,” a bulletin from the union said. The vote to ratify the contract last week was 88 to 13.