(Harrisburg) -- The state Health Department is honoring health care facilities for boosting the flu vaccination rate among their workers, while challenging others to do the same. Twenty-nine hospital-based and 11 long-term care facilities in the Commonwealth have achieved a recommended 90 percent or higher staff vaccination rate. Acting Physician General Dr. Stephen Ostroff says there's still lots of work to be done. "Overall vaccination rates in our health care workforce have just nudged over 60 percent. So, that's a lot of work to do to get to a 90 percent goal that we're trying to achieve. We're asking facilities to commit to reaching that 90 percent mark by 2013," Ostroff says. He says facilities achieving the 90 percent goal have been placed on an honor roll at FluFreePA.com and have also received certificates of excellence. The department has launched a campaign called "Earn Your Stripe" to encourage workers to get flu shots. Ostroff predicts a spike of flu infections in the cold months of early 2012.