Doctors Warn: Two Completely Separate Bouts of COVID-19 Infection Possible

Repeated testing for COVID-19 is vital, economic and public health analysis shows

The Lancet Public Health: Weekly testing and two-week isolation most cost-effective strategy to control spread of COVID-19 in high transmission areas, US study suggests

Scientists Are Testing Mixing AstraZeneca's COVID-19 Vaccine With Pfizer's