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Important notice

doctorportal Learning is on the move as we will be launching a new website very shortly. If you would like to sign up to dp Learning now to register for CPD learning or to use our CPD tracker, please email support@doctorportal.com.au so we can assist you. If you are already signed up to doctorportal Learning, your login will work in the new site so you can continue to enrol for learning, complete an online module, or access your CPD tracker report.

To access and/or sign up for other resources such as Jobs Board, Bookshop or InSight+, please go to www.mja.com.au, or click the relevant menu item and you will be redirected.

All other doctorportal services, such as Find A Doctor, are no longer available.

[Comment] Novel influenza A viruses and pandemic threats

A surge in human infections caused by avian influenza A H7N9 virus in China has prompted pandemic concerns and has focused attention on novel influenza A viruses.1 Since 2013, more than 1400 human beings infected with avian influenza A H7N9 virus, resulting from poultry exposures, have been reported during winter–spring epidemics in China.2–4 Low pathogenicity avian influenza (LPAI) A H7N9 viruses have spread silently among asymptomatically infected poultry in bird markets and farms. Avian influenza A H7N9 virus infection of human beings can cause severe illness, with high mortality (about 40%) in hospital inpatients.