ANATOMY OF BRITAIN (662 pp.)—Anthony Sampson—Harper & Row ($6.95). In the 19th century, when Britannia ruled the waves, its terra firma was unquestionably governed by the ruling ...

DEAR DR. ROACH: I’m a 56-year-old male who never had the chicken pox. When the first of my children was born, I had blood tests done to see if I’d ever been exposed. I had not, so I received ...

Chickenpox is highly contagious, with the NHS recommending anyone who has it stay home until the spots form a scab. Chickenpox can be dangerous for those who are vulnerable, such as newborns ...

L-lysine is an essential amino acid. Another amino acid, arginine, counteracts the antiviral action of lysine. As a result, L ...