Humanity has survived many deadly diseases throughout history, thanks to discoveries and breakthroughs in the medical field. Unfortunately, bacteria and viruses also capable of mutating and adapting to the drugs and treatments that have been developed.
Infectious diseases are known to be a major threat to humankind, because once an outbreak occurs – a lot of resources are needed to contain and manage the outbreak. Needless to say, without proper planning and action, a single outbreak can easily escalate into a world crisis.
These are some of deadliest diseases in the history that have managed to be controlled.
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