Doctors and educators take questions on vaccines and variants 6 p.m. Thursday in the “Kids and COVID″ webinar Updated 8:46 AM; Pennsylvania Acting Physician General Dr. Denise Johnson and Rich Askey, president of the Pennsylvania State Association of Educators, will be among speakers at the first of three webinars on “Kids & COVID” at 6 p.m. Thursday, April 15, that will look at the impact of the pandemic on children in grades K-12. Dr. Denise Johnson, Pennsylvania's acting Physician General, talks about blood clots associated with Johnson & Johnson's COVID-19 vaccine on April 13, 2021. Key speakers include Dr. Nirmal Joshi, Chief Medical Officer, Population Health, Mount Nittany Health System; William Harner, Ph.D, Superintendent of the Quakertown School District; Dr. Melissa M. Brown, Psy.D , UPMC Licensed Psychologist, Clinical Manager; and Dr. Kristie Kauffman, pediatrician, Mount Nittany Health System.