Former Mayor of New York Rudy Giuliani, a lawyer for President Donald Trump, speaks during a news conference at the Republican National Committee headquarters, Thursday Nov. 19, 2020, in Washington. (AP Photo/Jacquelyn Martin, file)Former New York mayor and current Trump lawyer Rudy Giuliani was admitted to a hospital in D.C. on Sunday after testing positive for COVID-19, according to multiple reports. Slaoui told CNN that the vaccines are “highly effective,” and that he expects “most of the highly susceptible people,” around 100 million or so, to be protected against the virus by mid-March. Pfizer said last month that its vaccine, which requires two doses administered three weeks apart, is 95 percent effective. \"We have a vaccine,” Slaoui told CNN Sunday.