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What is the virus that causes flu? Why doesn't the body create permanent immunity against that virus? How does the vaccine against flu work?
Flu is a disease caused by the influenza virus, a highly mutant DNA virus. Because of the high mutation rate of the virus, that forms many dissimilar strains, flu always presents epidemic features in affected populations and people may have some flu episodes during life (the immune response made from previous infections is not efficient in future infections).
The vaccine against flu is a vaccine made of attenuated virus of three dissimilar strains. Each year the WHO (World Health Organization) researches and determines which are the strains that should compose the vaccine. This is a method to face the high mutation rate of the virus.
Defects in Human Development 1) For instance, when a pregnant woman drinks alcohol her embryo is exposed to similar concentration of alcohol as is in her blood. The alcohol ma
LUNG S (PULMONES) - Present in pleural cavity. Covered by double layered pleura. Outer parietal pleura and inner visceral pleura. Both are continuous, slip on
Define Importance of Nutrition in Human Body? Nutrition is increasingly being recognized as an important determinant, which modulates the biological process of ageing. Poor nut
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Clinical Manifestations Early Symptoms Symptoms are episodic in nature or continuous with very little response to bronchodialators. Productive cough especially on awake
How does the intensity of facilitated diffusion vary in relation to the concentration of the moved substance? What is the limiting factor? Like simple diffusion facilitated dif
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K.L. is a 30-year-old Caucasian male was brought to Emergency Department (ED) after a bicycle accident. He was hit from behind by a compact car traveling at 35 miles per hour. On
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