Think like a virus to understand why the pandemic isn't over yet – and what the US needs to do to help other countries

PROMO Health - Virus Vaccine Immunization Needle Vial COVID-19 Coronavirus - iStock - kovop58

With COVID-19, thinking like a pathogen leads to an inevitable conclusion: Getting the vaccine out to everyone in the world as quickly as possible is not just an ethical imperative, but also a selfish one.

I’m fully vaccinated but feel sick – should I get tested for COVID-19?

PROMO Health - Virus COVID-19 Coronavirus - iStock - ktsimage

Imagine last night you developed a little runny nose and a sore throat. When you woke up this morning you started coughing and had a fever. In the past year, your mind would have immediately jumped to COVID-19. But if you are already fully vaccinated, you might wonder: Should I still get tested for COVID-19?