LUCIRA® by Pfizer COVID-19 & Flu Home Test is the only over-the-counter product that puts 2-in-1 lab testing for both COVID-19 and Flu A/B in the palm of your hand. With LUCIRA® by Pfizer, you and your family can determine if your viral respiratory symptoms are caused by COVID-19 and/or the flu. After testing, always contact your healthcare provider about care or treatment.