3 results for “vaccine”

1. The Human Body

   The Immune System

   Vaccines use this memory deliberately. A vaccine contains a harmless version or piece of a microbe

   Article · 4 min read

   

2. Life & Biology

   Bacteria and Viruses

   Vaccines exploit this by showing the immune system a harmless piece or copy of the virus

   Article · 4 min read

   

3. Life & Biology

   Evolution

   vaccines must be updated annually. Peppered moths in industrial England turned dark within decades as soot

   Article · 4 min read