How do pandemics work?
How do pandemics work?
user
Pandemics are generally defined as an epidemic disease that spread worldwide.  Many causes for pandemics are known, including animal diseases jumping to humans, antibiotic resistance, new vaccines, bacteria mutations, or natural disasters.
assistant
How do new vaccines cause pandemics?
user
Vaccines are developed to protect people from getting disease.  An example of a vaccination causing a pandemic is when the human papilloma virus (HPV) was spread from certain kinds of the vaccine to people who didn’t need it.
assistant
How does a natural disaster cause a pandemic?
user