Des Moines Register: Iowa will receive more than 100,000 first-shot doses of COVID-19 vaccine this week, for the first time crossing the six-figure milestone for the much-coveted doses. The supply is bolstered by about 33,400 doses of the vaccine developed by Johnson & Johnson. That vaccine requires only one dose for full efficacy. That vaccine received federal emergency approval over the weekend. Those doses are in addition to Iowa’s expected receipt of about 85,000 first-shot doses of vaccine from Pfizer and Moderna, each of which require follow-up doses to reach full efficacy. Those second shots are allocated separately.