The Danish authorities have confirmed several outbreaks of Newcastle Disease in poultry and have put restrictions in place, including controls on meat and meat products and a voluntary ban on exports of live poultry. 

Newcastle Disease is a highly contagious disease, although flocks can be protected from the disease by vaccination, which affects fowls, turkeys, geese, ducks, pheasants, guinea fowl and other wild and captive birds, including ratities (flightless birds) such as ostriches, emus and rhea.

It causes lack of appetite, respiratory distress with beak gaping, yellowish diarrhoea and nervous signs. In laying flocks a sudden drop in egg production with a high proportion of eggs laid with abnormal (soft) shells is often an early sign of disease.

In exceptional circumstances Newcastle Disease virus can cause conjunctivitus in people who work with live poultry. There is no risk to humans from poultry-meat or eggs.

The virus is unlikely to be spread by the wind, leaving Defra (Department for the environment, food and rural affairs in Britain) to state that there is no immediate cause for concern in Britain, although it has urged poultry keepers to be vigilant in looking for signs of disease.