Around how many blood cells do we have in our body’s immune systems

Question: Around how many blood cells do we have in our body’s immune systems
- Keywords:
  blood cells,
  immune system
Asked by anon-192132 to Kelly on 6 Nov 2018.
- Kelly Rushton answered on 6 Nov 2018:
  
  A lot! There can be up to 25,000 white blood cells (those are the cells which are part of the immune system in our blood) in just 1 drop of blood. You make about 10 billion new white blood cells every day!

Question: Around how many blood cells do we have in our body’s immune systems