tailieunhanh - Global status reporton noncommunicable diseases 2010

A pandemic is a global disease outbreak. A flu pa demic occurs when a new influenza virus emerge for which people have little or no immunity, and f which there is no vaccine. The disease spreads ea ily person-to-person, causes serious illness, and can sweep across the country and around the world in a very short time. It is difficult to predict when the next influenza pandemic will occur or how severe it will be. Wherever and whenever a pandemic starts, every one around the world is at risk. Countries might, through measures such as border closures and travel restrictions, delay arrival of the virus, but they cannot stop it. An especially severe influenza. | Global status report on noncommunicable diseases 2010 WHO Library Cataloguing-in-Publication Data Global status report on noncommunicable diseases 2010 disease - prevention and control. disease - epidemiology. disease - mortality. of illness. of health care. Health Organization. ISBN 978 92 4 156422 9 NLM classification WT 500 ISBN 978 92 4 068645 8 PDF World Health Organization 2011 Reprinted 2011 All rights reserved. Publications of the World Health Organization are available on the WHO web site or can be purchased from WHO Press World Health Organization 20 Avenue Appia 1211 Geneva 27 Switzerland tel. 41 22 791 3264 fax 41 22 791 4857 e-mail bookorders@ . Requests for permission to reproduce or translate WHO publications - whether for sale or for noncommercial distribution - should be addressed to WHO Press through the WHO web site http about licensing copyright_form en . The designations employed and the presentation of the material in this publication do not imply the expression of any opinion whatsoever on the part of the World Health Organization concerning the legal status of any country territory city or area or of its authorities or concerning the delimitation of its frontiers or boundaries. Dotted lines on maps represent approximate border lines for which there may not yet be full agreement. The mention of specific companies or of certain manufacturers products does not imply that they are endorsed or recommended by the World Health Organization in preference to others of a similar nature that are not mentioned. Errors and omissions excepted the names of proprietary products are distinguished by initial capital letters. All reasonable precautions have been taken by the World Health Organization to verify the information contained in this publication. However the published material is being distributed without warranty of any kind either expressed or implied.