The most frequent bird flu symptoms are:
Depending on the type of virus and the ability of the organism to fight off the infection, more serious and potentially fatal complications may appear. These include eye infections, pneumonia, acute respiratory distress and inflammation of the brain and heart. If respiratory failure occurs, it is most likely to cause the death of the subject. Also, it was observed that some of the victims of the bird flu in Vietnam presented other symptoms, such as diarrhea, seizures, while two children developed acute encephalitis.