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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.
On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.
In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.