CHEYENNE - Wyoming is the only state in the region that hasn't detected swine flu within its borders.
Spokeswoman Kim Deti said Monday that the Wyoming Department of Health has not found swine flu in 115 tests of possible flu samples from around the state.
Meanwhile, health officials in Montana and North Dakota both identified probable swine flu cases in their states in recent days.
The Centers for Disease Control and Prevention says there are confirmed cases in 44 states, including Idaho, Utah, Colorado, Nebraska and South Dakota.
Deti says the state health lab is still fielding a steady stream of requests for swine flu testing from local health care providers. She says there's no testing backlog.