A new variant of COVID-19 named Omicron was found. This new strain may increase reinfection risks. Scientists across the world are trying to understand its effects and vaccines. Scientists get to know a new variant of COVID-19 named Omicron. This new strain of COVID-19 was first found in Southern Africa. There are many concerns about Omicron, it can increase reinfection risks. Scientists from all over the world are trying to understand if COVID-19 vaccines will work against this variant of COVID-19.