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The pneumococcus: infection is more dangerous thrive in colder periods

Infections such as pneumonia, meningitis and otitis media, threaten our health throughout the year. An interesting phenomenon is but the seasonal incidence of invasive pneumococcal infections - Every winter the number of reported cases is increasing rapidly.

Beware of cold and crowded room

As with many other infectious diseases increases and decreases the incidence of pneumococcal disease according to the season. Although this relationship has been repeatedly described, but so far has not found quite clear explanation of why this is so. Winter "records" diseases that benefit from cold weather, lower humidity and air pollution. The pneumococcus in the winter revels and because there is more accumulation of susceptible persons in enclosed spaces - many of these people have additionally reduced immunity. More frequent viral infections normally then pave the way for secondary bacterial infection.

The highest-risk period from Christmas to Epiphany

American doctors from the Centers for Disease Control and Prevention (CDC) have dealt with the question of how far the influence of year incidence of pneumococcal infections.
The survey was conducted in seven US states where recording all cases of invasive pneumococcal disease, a disease which constitute the human organism serious infection. These include meningitis, pneumonia and pneumococcus presence in the blood (septicemia).
In all the areas, the frequency of pneumococcal winter increased.
In children, increased number of cases in the autumn and preceded to increase disease in adults with a peak between December 24 and January 7.

Fatigue organism

Overview of individual states suggests that the fewer degrees thermometer showed that the pneumococcal more successful. At the turn of the year, when the day is shortest, the number of invasive infections peaked. This means that the human organism during short winter days probably more susceptible to certain infections including the pneumococcus. For seasonal incidence of pneumococcus can become weakened immunity among risk groups in the winter when we are least exposed to sunlight.


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