Nevada is making all residents ages 16 and older eligible for the coronavirus vaccine starting April 5 as part of its efforts to inoculate the population as quickly as possible. Gov. Steve Sisolak on Wednesday said opening eligibility was made possible through the approval of the Johnson & Johnson vaccine and increased production. But whether shots would be available, he said, depended on the supply delivered by the federal government. Nevada also plans to make residents ages 16 and older with underlying health conditions eligible for shots on March 22 through partner pharmacies before opening eligibility to all residents in that group.