Recent research on COVID-19 vaccination shows that vaccines help fight variants, led to lower cases among children in California, and that boosters provide longer lasting protection.
Although the federal COVID-19 health emergency in the United States ended in May 2023, the disease still remains a threat to the public because of emerging variants. According to the latest data from the CDC, there were over 5600 hospital admissions due to COVID-19 for week ending April 20.1 Vaccines are still the most effective way of preventing COVID-19 and research into their efficacy, safety, and other important measures continues.