Harris County officials say they’ve fixed vaccine online waitlist issues, added more call takers Harris County Public Health officials said they fixed the bug around 10:30 p.m. Tuesday and have had no issues since. Author: Adam Bennett Updated: 5:31 PM CST January 27, 2021 HARRIS COUNTY, Texas — Officials at Harris County Public Health said Wednesday they added call takers and fixed issues that caused their online portal for the COVID-19 vaccine waitlist to go down shortly after launch. Mac McClendon, Director of Harris County Public Health’s Office of Public Health Preparedness and Response, blamed a programming glitch for taking down the portal for several hours Tuesday.