State health officials say 35% of COVID-19 tests in Missouri are coming back positive.
Officials say the Omicron variant of the virus is more infectious than other variants.
Health officials say vaccination is the safest way to achieve heard immunity, which requires 80 to 90% of the population to have immunity.
Just over 62% of Missourians have received at least one dose of a COVID-19 vaccine.
The Springfield-Greene County Health Department projects the peak of the current surge of Omicron has not yet arrived and is not expected for at least two more weeks.
The health department estimates that one in 25 people locally is now infectious.
As of Friday, 225 people with COVID-19 are being treated in Springfield hospitals, and the seven day average number of daily cases is 735.