Green, green, good, good. Hopefully we, and everyone else, will have a green year of 2021.

Photographer Jinhai Wang, M.D., in Maryland, USA

Now more and more people have had COVID vaccine shots. Should fully vaccinated people wear mask or not? Without mask, if exposed to COVID viruses, your body was exposed to viruses. With mask, the viruses are on mask. When the pandemic cease, who care mask or not.

CDC reported this week that there are less than 6000 new infections in fully vaccinated people in US SO FAR.  So far there are 86 millions of Americans fully vaccinated in US. It take at least one week to reach the peak of immunity after second shot, so it is good to still wear mask for a week or longer after second shot. The Infection Rate POST VACCINATION is very low. The vaccines give 90-95% protection.  Jinhai Wang, M.D.

More than 60% Americans have had COVID-19 vaccine. Current view:  Protection by vaccines could last more than a year or even longer. Many vaccines to other viruses give life long protection. However, a few of vaccines need a boost every five years or so.

DC 2021 peak cherry blossom time is March 30 to April 2, according to Park.

Flowers already bloomed/bloom in Washington metro area:  Crocus, Navy Blue, Royal Purple, Tulip.

March 30 is a great Sunny day!

111 millions of Americans got COVID vaccine, or 33% US population got COVID vaccine shot, according to CDC. So far, three COVID vaccines have been given EUA in USA: Pfizer-BioNTech, Moderna, J&J.

30% Americans now had at least one shot of COVID 19 vaccine.

COVID-19 new cases dropped to below 50,000 yesterday.        Med Music (Jinhai ) Wang

Spring, Spring, Spring, finally here. Jinhai Wang songs.

USA SENATE passed 1.9 trillion COVID stimulus bill SATURDAY.