"Amid the latest Omicron surge, Hays Consolidated Independent School District -- just south of Austin, Texas -- has been hanging on by a thread due to a teacher shortage, like so many districts across the country. Most absences are due to Covid-related illness or needing to quarantine from exposure to the fast-spreading variant. In early January, the district put out a desperate plea, asking parents to work as substitute teachers to fill the gaps among their staff and substitute teacher pool." -CNN.