Across the state, local public health departments were pivoting their COVID-19 vaccine distribution plans on Friday, an effort that likely will continue throughout the weekend after the state abruptly announced it was expanding eligibility to include Iowans with underlying medical conditions starting next week.Local officials say they had little warning before state officials made the announcement Thursday evening, leaving them with no time to adequately plan their strategies and putting further strain on local vaccine providers that already are feeling the pressure to meet the demand for shots while the supply still is limited.“It is a strain,” Heather Meador, clinical services supervisor at Linn County Public Health, said on Friday.