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In an interview with the Boston Globe, Cooper claimed that when she and other teammates contracted mononucleosis, also known as the “kissing disease,” she was the only one Feldman called into her office to ask who she had been with.

Acute infection with the virus can cause glandular fever -- also known as "kissing disease" -- and can put infected individuals out of action for several months.

There is currently no vaccine for the Epstein-Barr virus, which is the leading cause of mononucleosis, or mono, commonly called the "kissing disease".

Transmitted mainly through saliva, the virus can lead to infectious mononucleosis, or “kissing disease,” in newly infected teens and young adults.

Most of us won't even notice, but the virus is famous for "the kissing disease", which is also known as either glandular fever or mononucleosis.