The viral infections of the upper respiratory tract are an important cause of morbidity and mortality worldwide and, among them, influenza is one of the most important ones, with severe cases ranging ...
Epidemiology is the study of the emergence, distribution and control of disease, disability and death among groups of people. The field of epidemiology combines the sciences of biology, clinical ...
The viral infections of the upper respiratory tract are an important cause of morbidity and mortality worldwide and, among them, influenza is one of the most important ones, with severe cases ranging ...
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