Word story Expand. Hypochondriac comes ultimately from the Greek word hypokhondria, which literally means âunder the cartilage (of the breastbone).â In the late 16th century, when hypochondriac first entered the English language, it referred to the upper abdomen.
Cold symptoms usually begin with a sore throat, which usually goes away after a day or two. Nasal symptoms, runny nose, and congestion follow, along with a cough by the fourth and fifth days. Fever is uncommon in adults, but a slight fever is possible.
Youâre contagious starting 1 day before you get sick and up to 5 to 7 days after you show symptoms. The seasonal flu is caused by the influenza A, B, and C viruses, with influenza A and B being the most common types. Active strains of influenza virus vary from year to year. Thatâs why a new flu vaccine is developed each year. Unlike the common cold, the flu can develop into a more serious condition, such as pneumonia. This is especially true for: