A lot of people are getting allergies nowadays. Earlier, allergy used to be attributed to genetic factors, but researchers have pointed out that genetic changes would appear over an extended period of time. The sudden rise in allergy cases can only be connected to other factors. Environmental pollution plays a major role in bringing about several allergic reactions. In the United States alone, around 62 million people are affected by common cold.
Any of over 200 viruses can cause it. Modern technology has his disadvantages. Cold viruses are found on the phones in offices.
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