BA.4 and BA.5 may be more adept at avoiding current vaccinations and immunity.
Approximately 7.5% of all infections in the United States are caused by BA.4, another omicron subvariant.
A growing number of people are wondering how fast an illness might spread and what symptoms can show up first as the number of diseases rises.
Early signs of COVID-19 include tiredness, headache, sore throat, or fever, as reported by Johns Hopkins Medicine.
A loss of taste or smell may be the initial symptom experienced by some people.
According to a study conducted by USC researchers, fever may sometimes be the presenting symptom of an infection.