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Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.
More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.
Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.