Cuddly soft toy.
FACTS: Vaccines are one of the greatest medical advances of all time. Vaccination programs have saved millions of lives. Your body’s immune system acts like a security system to protect you against invading viruses, bacteria and other microbes. When harmful microbes make it past your skin, mucous and other surface barriers, they trigger the immune response. This involves white blood cells and antibodies that target specific microbes. Antibodies tag the microbe so your immune system can recognize it. If this microbe attacks in the future, your body can destroy it.