Amazon has restricted shoppers from purchasing more than 10 units of COVID-19 test kits following similar actions from other major retailers as the highly-transmissible Omicron variant is now reported to be the dominant strain in the United States. As of Dec. 18, more than 73 percent of new infections are now from the Omicron variant, reported the Centers for Disease Control and Prevention (CDC). With 26.6 percent of total cases, the Delta variant has been pushed to the second position. As many people travel for the holidays, there has been an increase in demand for test kits to identify instances of infection. Currently, the COVID-19 Test Collection Kit is reported to be unavailable on Amazon, while California-based iHealth Labs’ COVID-19 Antigen Rapid Test is restricted to five units per individual. Besides e-commerce sites, queues are found at test sites and there’s a shortage of test kits in pharmacies. According to …