abc news reporter ellen lopez has lays. >> this morning, the reach of omicron grows in the night stayshat it could be spreading twice as fast as the delta variant. at least in south africa. louisiana, missouri, utah, new jersey, and pennsylvania now among the states with confirmed infections. >> we are working closely with state and local authorities to investigate suspect casey's in other states. >> in nebraska, cases are linked to someone who recently returned from nigeria. >> there are five cases where they were likely exposed. to the first case. through close household contact. >> while there is contact over what is a highly mutated very, officials stressed of the biggest threat right now is delta. >> i know that the news is focused on omicron, but we should remember that 99.9% of cases in the country right now are from the delta variant. delta continues to drive cases across the country, and especially in those who are unvaccinated. >> still, the race to learn more about the new strain is underway. >> there is every reason to believe that if you get vaccinated and move -- boosted,