How Long Will A Covid Vaccine Be Effective And Why Cold Storage Is Important | NBC News NOW

AstraZeneca said its Covid-19 vaccine could be up to 90 percent effective in preventing the disease — a third breakthrough

Read more

Analyzing The Vaccine Debate In The U.S. | MSNBC

Before Ohio teen Ethan Lindenberger testifies before the Senate on vaccinations, MSNBC Medical Correspondent Dr. John Torres analyzes the anti-vaccination

Read more