Well sadly a small number of people have lost their lives. At the moment this is limited to Mexico (as far as I am aware), although there is a possibility the virus is mutating and could kill a lot more people. Admittedly the normal flu we associate with colds can kill people, but this is general the elderly who inevitably have a weaker immune system than a young person. This virus is killing or infecting perfectly healthy people quite badly and that's the significant difference. I've had bad colds before, but never the flu.
why should people be worried about this specifically ? because the bbc have run it as a news headline for days ?