Some deadly diseases you thought were long gone are still very much alive — and highly contagious. Despite medical advances like vaccines, better sanitation, and antibiotics, many dangerous health conditions still affect many parts of the world. The prevalence of diseases vaccines have almost eradicated are on the rise again. Antibiotic resistance makes widespread bacterial infections a major possibility.
Scarlet fever is a side effect of step throat in some people. It produces a bright red rash all over the body along with a fever and sore throat. If left untreated, this condition can cause damage to your heart, lungs, kidneys, and nervous system.
Next: The HIV/AIDS epidemic in the early 1980s caused an increase in the number of these types of infections.