California is declaring whooping cough to be an epidemic after 800 cases were reported in the last two weeks. Learn how whooping cough spreads.
My controversial 3.75 minute NPHG presentation on the distribution of immunizable diseases is at : https://www.youtube.com/watch?v=UBUPd8LPdrQ&list=UUMJaJTXo6VmoTW2yktQiZrA&index=24
My 3D videomap on the distribution of refusals to immunize children is at: https://www.youtube.com/watch?v=LyqSJQOqSHU&index=21&list=UUMJaJTXo6VmoTW2yktQiZrA
The Playlist for this several year old site is found at: https://www.youtube.com/playlist?list=UUMJaJTXo6VmoTW2yktQiZrA