The presence of chronic diseases light weights many times for influenza and other respiratory infections, consider Russian scientists. They insist on mandatory vaccination for this group of persons.
Now in full swing with a programme of vaccination of the population. In the Orenburg region is planned to provide the vaccine almost 200 thousand citizens. The flu is a dangerous disease with relatively high mortality. Doctors found that flu in the presence of chronic lung disease in humans is 300 times more dangerous.
Note that even SARS can cause serious complications or even death. Doctors advise to contact the clinic by place of residence when the first symptoms of the disease, when treatment has the highest efficiency.