They say the flu started with a cough in the summer of 1918 and by the time it ended 120 days later, it left 22 million people dead worldwide. In Philadelphia after just 28 days there were 12,191 reported deaths and 47,094 reported cases. Th...英国华人论坛
What is Influenza - Flu: Influenza is commonly called or known as 'the flu', it is a contagious viral infection of the respiratory tract. Although the flu affects both sexes and all age groups, kids and senior citizens tend to get it the mos...英国华人论坛
IDENTIFYING INFLUENZAInfluenza is an infectious and contagious ailment. Influenza is commonly termed as flu and also grippe. Influenza is usually acute. Influenza especially attacks the trachea, an important part of the respiratory tract. SI...英国华人论坛
Sometimes confused with the common cold, influenza is a much more severe disease and caused by a different type of virus. Similarly, the unrelated gastroenteritis is sometimes called "stomach flu" or "24-hour flu".Types of influenza virusThe...英国华人论坛