Probiotics such as bifidobacteria are typically used in cases when a disease occurs or might occur due to a kill-off of normal bacteria. For example, treatment with antibiotics can destroy disease-causing bacteria, but also normal bacteria in the GI (gastrointestinal) and urinary tracts.
The 3-place Hiller Model 360, military H-23 Raven, was based on the U.S. Navy UH-12, which was first flown in 1948. The H-23 Raven performed as a utility, observation, and MedEvac helicopter during the Korean war.
The 500 H-60M aircraft are part of a planned production run of a total of 1,375 M models (956 UH-60M and 419 HH-60M aircraft), which the Army plans to order through 2026. By then, the Army's total Black Hawk fleet-including upgraded UH-60A and UH-60L-is expected to exceed 2,100 aircraft.ikorsky delivered the first full rate production UH-60M in December 2007 - preceded by 31 low rate initial production (LRIP) aircraft delivered from 2005-2007. The first U.S. Army HH-60M MEDEVAC helicopter (outfitted with a dedicated clinical cabin) was delivered in August 2008.