We have received a letter from the Department of Health dated 17 April 2013 on the latest situation on avian influenza A(H7N9), and would like to disseminate the information for your attention.
As of 16 April 2013, 77 cases of human infection caused by the avian influenza A(H7N9) virus have been reported by the National Health and Family Planning Commission (NHFPC) in Anhui Province (3 cases), Beijing Municipality (1 case), Henan Province (2 cases), Jiangsu Province (20 cases), Shanghai Municipality (30 cases) and Zhejiang Province (21 cases). Among them, sixteen patients died (case-fatality ratio=21%) and more than 80% were severe cases.
According to the latest risk assessment by NHFPC, the H7N9 virus is of avian origin and people are mainly infected through exposure to infected poultry or its contaminated environment. Hence, contact with infected poultry or visiting wet markets with live poultry are important risk factors of human infection caused by the avian influenza A(H7N9) virus.
To prevent avian influenza, please kindly be reminded to avoid visiting wet markets with live poultry or contacting poultry especially when travelling to affected areas, always observe strict hand hygiene and avoid touching mouth, nose or eyes. Wash hands frequently with liquid soap, especially before handling food or eating, after going to toilet, or when hands are dirtied by respiratory secretion after coughing or sneezing. In addition, the following measures are advised:
· Avoid touching poultry, birds or their droppings, because infected poultry, birds or their droppings may carry the avian influenza virus;
· Wash hands thoroughly with liquid soap and water immediately in case of contact with poultry, birds or their droppings;
· Cover nose and mouth while sneezing or coughing. Dispose of sputum or secretions wrapped in tissue paper into rubbish bins with lids. Wash hands with liquid soap and water afterwards;
· Build up good body resistance and have a healthy lifestyle. This can be achieved through a balanced diet, regular exercise, adequate rest, reducing stress and no smoking;
· Thoroughly cook poultry and eggs before eating;
· Maintain good environmental hygiene;
· Maintain good indoor ventilation;
· Avoid crowded places with poor ventilation if feeling unwell; and
· Seek medical advice if fever or respiratory symptoms develop.