Although the medical and health care are becoming more and more advanced but there is no perfect solutions for eliminating the infectious agent. There are basically three type of infectious agent that can harm human directly; virus, bacteria and large organism like worm. But thanks to this advancement, because there many method have been develop to diagnose the underlying disease not only based on the signs and symptoms of the disease but also using hi tech medical instruments.
The signs, symptoms of these infections are varies according to type of infectious agents and what part of body is being invaded. the signs, symptoms maybe mild, moderate or even severe. The prognosis (the outcome of disease) may also varies from spontaneous relieve to dangering life.
Few common signs, symptoms of infections are :
- The first and most important symptom is fever (usually more than 38.9 celcius), this conditions occur because there are interactions between the infectious agents with our body immune system.
- The second symptom is sore throat. This symptom occur when there are infections in upper respiratory tract. the manifestation of this symptom can also be vary, from only causes pain when swallowing to loss of voice.
- The third symptom is cough. cough is one of the symptom of lower respiratory tract infection. It can happen because there are a obstruction in bronchus or inflammation in the lung)
- Last most common symptoms are nausea, vomiting with or without diarrhea. This are the symptoms of infections of our gastrointestinal tract (bowel) .