Israel study of 171 kids w/ MIS-C (med age 8 (5-12): Dx#s - 59 during Alpha , 79 Delta , & 33 Omicron waves. All Rx w/ IVIG + steroids. 6-15% prev recv COVID VAX, none ICU admitted. Worse Dz & higher incidence during alpha wave (54.5/100K) https://t.co/wAby8uKIH4 https://t.co/zc19zeUKpq