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Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.
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.
Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.
The human body produces and destroys 15 million blood cells every second.
![Polycystic kidney disease. Notice the presence of numerous fluid-filled sacs, or cysts, in these kid](https://biology-forums.com/gallery/47/medium_14755_26_10_12_5_19_57_9665633.jpeg)
![Diverticulosis. It is the presence of abnormal pouches in the wall of the large intestine (diverticu](https://biology-forums.com/gallery/47/medium_14755_26_10_12_5_22_59_96831113.jpeg)
![Cervical cancer (a) Top view of the uterus showing the presence of a tumor in the wall of the cervix](https://biology-forums.com/gallery/47/medium_14755_26_10_12_5_31_30_9710852.jpeg)