Yes, I believe, though Progress in the medical world rapidly growing each day. But there are still some diseases and viruses that remain a mystery to doctors and scientists around the world. In addition to HIV, there are some diseases which until now still can not be cured permanently.
Poliomielitis, better known by the name of Polio, has been around for thousands of years. This is an acute contagious viral disease that affects the nervous system. It usually affects the legs and causes paralysis. In most cases, the first symptom is a headache, nausea, fever, fatigue and muscle aches.
Ebola virus Filoviridae is that cause epidemic human disease. It is characterized by an extreme fever, many bleeding, and is often fatal. To this day, even though it has researched extensively, there is still no cure for this deadly disease. The death rate for humans infected with ebola is 90%.
Schizophrenia is a mental disorder that is the most complicated. This is a disease of the soul which cripple patients logically difficult to distinguish reality and fantasy. Doctors confused because this disease does not determine the medical tests. Common symptoms of this disorder include loss of the ability of rational thinking, delusions, hallucinations, not coherence of thought and speech, as well as losing the ability to recognize people in the real world.
Because it can not be diagnosed properly and medical, disease is not curable. Although it is often treated with medication, but only treat some of the symptoms only