The Most Terrifying Diseases That Doctors Can't Explain - Amazing Disease and Health Tips

भिडियो हेर्न तलको बक्स भित्र किल्क गर्नुहोस

As violent as we can be towards one another, throughout history the biggest executioner of the human race has been deadly disease. Whether it was the Black Death in 14th century Europe or Ebola in present day Africa, the loss of human life and cost to society has been astronomical. After the vaccination campaigns of the 20th century, smallpox has become one of two infectious diseases that have been declared as completely eradicated (the other being rinderpest). Throughout history, however, small pox has claimed numerous lives and just in the 20th century, prior to vaccination, the death toll was estimated at nearly 500 million.

भिडियो हेर्न तलको बक्स भित्र किल्क गर्नुहोस