Chronic traumatic encephalopathy (CTE) is caused by a single blow to the head.

it's unlikely a majority of a large population would agree on issues

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answer: although many types of viruses can cause a common cold, rhinoviruses are the most common culprit. a cold virus enters your body through your mouth, eyes or nose. the virus can spread through droplets in the air when someone who is sick coughs, sneezes or talks. theres your answer

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