With the first cases of the omicron variant confirmed in the U.S. this week, the effort to track the COVID-19 virus is once again intensifying.A highly specialized lab in North Carolina is at the forefront of detecting the ever-changing virus.Mako Medical Laboratories sequences COVID-19 test samples taken in more than 40 states.Labs like Mako are key in detecting the omicron variant in the United States because of what they do after identifying a positive test.Watch the video above to learn more about this story.