Early symptoms for H5N1 avian influenza are very similar to those for ordinary influenza, including a sudden persistent high fever, coughing, a sore throat, aching muscles, vomiting, and diarrhea.
感染 H5N1 禽流感的早期症狀很像一般感冒，包括：突發高燒不退、咳嗽喉嚨痛、全身肌肉痠痛，以及上吐下瀉等。