Bacteria and viruses have some things in common. Both are spread by sneezing, coughing and contact with infected people; both can be acquired from contaminated food, water or surfaces; and both can be obtained from pets, insects, livestock and ticks. Both can cause illnesses ranging from mild to severe, with symptoms like sneezing, coughing, inflammation, fever, diarrhea, vomiting, fatigue and general aches and pains.
And yes, both can be deadly. Ancient history has shown the catastrophic effect of such bacteria-borne and viral diseases as the bubonic plague and smallpox, both of which killed millions of people. In more recent times, epidemics like the influenza and HIV infections have killed millions.
Mostly, the differences between bacteria and viruses relate to their structures and response to specific medications. Therein lies the biggest issue.
Tale of the Tape
Bacteria are single-celled microorganisms that are found practically everywhere, including all over the human body. They can thrive practically everywhere, including inside the body. Most of the time, bacteria either cause no harm or are helpful, as in the intestines, where they help to digest food.
Less than 1 percent are harmful, but there are some infectious bacteria that can cause such conditions as tuberculosis, urinary tract infections and strep throat. Bacteria are complex and have a rigid wall and a rubber-like membrane that surrounds cellular fluid. They are capable of reproducing without assistance and can survive extreme conditions, including radioactive ones. It’s been said that bacteria will be the last living thing on the planet should Armageddon strike.