What are the early symptoms of avian flu?

The occurrence of avian influenza has caused panic in many people, because avian influenza may also cause mutual infection, so it is necessary to detect these symptoms in time and take timely treatment measures. For example, if coughing, sneezing, or something happens, accompanied by nausea, abdominal pain, and diarrhea, you should be more cautious.

1. The incubation period is generally 1 to 3 days, usually within 7 days.

2. Clinical symptoms begin acutely, and early manifestations are similar to common influenza.

(1) The main symptom is fever, with the body temperature mostly remaining above 39°C. The fever lasts for 1 to 7 days, usually 3 to 4 days, and may be accompanied by runny nose, nasal congestion, cough, sore throat, headache and general discomfort.

(2) Some patients may experience gastrointestinal symptoms such as nausea, abdominal pain, diarrhea, and loose watery stools. The condition of severe patients progresses rapidly, and they may develop various complications such as pneumonia, acute respiratory distress syndrome, pulmonary hemorrhage, pancytopenia, renal failure, sepsis, pleural effusion, shock and Reye syndrome.

(3) Severely ill patients may have signs of pulmonary consolidation. The clinical manifestations of H7N9 are: The incubation period of human infection with H7N9 avian influenza is generally within 7 days. Patients generally present with flu-like symptoms, such as fever, cough, and little sputum, which may be accompanied by headache, muscle aches, and general discomfort. The condition of critically ill patients progresses rapidly, manifesting as severe pneumonia, with body temperature mostly remaining above 39°C, dyspnea, and coughing up blood and sputum; it can rapidly progress to acute respiratory distress syndrome, mediastinal emphysema, sepsis, shock, impaired consciousness, and acute kidney injury.