of protection or security if they all got a rapid test. reporter: dr. william schaffner is part of the advisory committee on immunization practices. i m certainly disappointed and concerned that testing is not more widely available. reporter: number parts of the country, finding a test is extremely difficult. appointments are tough to get and over-the-counter rapid tests are selling out online and at pharmacies. dr. brook watts works with metro health in ohio. there isn t a rapid test to be found, and the pcr tests that are offered generally at testing sites, the wait period is productsly seven days. the alarm has been sounded on testing levels since early in the pandemic. i think that our testing failures is perhaps the greatest failure of this pandemic. in recent months they have tried to ramp up production and used the defense action team said