Scientists close to finding cure for common cold


Could we soon have a cure for the common cold?

Researchers in London are close to a breakthrough in the development of a nasal spray that could prevent colds.

They've had successful trial runs in rats a mice, and are readying testing on humans.

The tricky part: there are about 200 different viruses that cause the common cold.

The good news: 80 percent of colds are caused by just three of them.

The team is in the process of testing the spray in 36 volunteers and are waiting to see if the vaccine works.

In the United States, the cold leads to 75-100 million doctor visits every year, costing $7.7 billion per year.

Americans spend $2.9 billion on drugs and another $400 million on prescription medicines for relief. 

The common cold accounts for 40 percent of time lost from work in the United States.

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