100 staff at a Montreal long-term-care facility must be re-vaccinated
About 100 Montreal health care workers need a second shot of H1N1 vaccine after they were given improperly mixed injections. People preparing the vaccine, which comes in powdered form and must be mixed with a liquid dilutant, didn’t fully understand government guidelines and created a batch with too much adjuvant—a substance used to boost immune response. Despite the mistake, public health officials say those affected are not in any danger.