When the 26-year-old signed I'm proud of you, the president quickly signed back a Thank you. The exchange can be watched below. Obama had previously used his American Sign Language abilities on the campaign trail, reports Salon. But that was years ago, and many people didn't know about his skill until the March 15 video went viral. The deaf student, reports Distriction, was elated. Oh my gosh! he signed in a video later posted to YouTube.
Viral Sore Throat. More than half of all sore throats are caused by viruses (known medically as viral pharyngitis). They are often the same viruses that cause the common cold, flu, a sinus infection (sinusitis), or other upper respiratory tract infections. Rhinovirus infections appear to be the most common reason for a sore throat.
Most sore throats have infectious disease origins, but some can result from breathing in dry, cold air through the mouth (for example, during the winter) or from having a foreign object stuck in the throat (for example, a fish or chicken bone). Most sore throats are caused by viruses. Many occur at the beginning of a cold when runny noses drain down the back of the throat and irritate it. Sore throats can also be caused by actual infection of the throat, such as strep throat, which is caused by bacteria (Streptococcus).