Why can't plague bacteria be completely eradicated on the planet?
Experts say that this dangerous, dangerous, infectious disease is coming back, the disease is still prevalent in different parts of the world. Why does 'black death' persist likeMeningococcal disease quickly kills the patient's life
The reservoir of meningococcal bacteria in nature is in humans, so the main source of infection is patients and healthy people carrying bacteria.The diphtheria and complications
Diphtheria is an acute infectious disease that occurs at any age and can lead to rapid death if not treated promptly.