Covid vaccines are not 100 percent effective, says Dr. Theresa Tam, chief public health officer. “I was told I was such a downer when I was just trying to be realistic about communicating the fact it is not a magic solution,” said Tam.
Covid vaccines are not 100 percent effective, says Dr. Theresa Tam, chief public health officer. “I was told I was such a downer when I was just trying to be realistic about communicating the fact it is not a magic solution,” said Tam.