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Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.
Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.
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.
Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.
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.
![(A) The nine regions of the abdominopelvic cavity. (B) The four regions of the abdomen, which are re](https://biology-forums.com/gallery/47/medium_14755_20_09_12_5_58_20_8856490.jpeg)
![A blood smear. The smear reveals representative cells from each formed element group: red blood cell](https://biology-forums.com/gallery/47/medium_14755_11_11_12_7_18_43_100341996.jpeg)