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 squadron became part of Tactical Air Command (TAC) as a Tactical Reconnaissance Squadron. Korean War activation. The 157th Fighter Squadron was federalized due to the Korean War on 10 October 1950. On 1 November the RF-51 Mustangs were transferred to other units and the 157th was re-equipped with RF-80A Shooting Star photo-reconnaissance jets and transferred to Lawson AFB, Georgia.