Amber van Moessner, like many parents with young children, has contracted Covid-19 from her kids twice. When the FDA approved updated booster shots on September 11 for individuals aged 6 months and older, she was hopeful. However, she has faced challenges getting her children vaccinated, as pharmacies near her home in Kinderhook, New York, have limited child-size vaccine doses and a lack of information on when more will become available.