|
|
Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.
About 80% of major fungal systemic infections are due to Candida albicans. Another form, Candida peritonitis, occurs most often in postoperative patients. A rare disease, Candida meningitis, may follow leukemia, kidney transplant, other immunosuppressed factors, or when suffering from Candida septicemia.
More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.
There are more nerve cells in one human brain than there are stars in the Milky Way.
Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.
![Hyperopia (farsightedness). In the uncorrected top figure, the image would come into focus behind th](https://biology-forums.com/gallery/47/medium_14755_27_08_12_12_24_59_82001466.jpeg)
![Comparison of normal-shaped erythro- cytes and the abnormal sickle shape noted in patients with sick](https://biology-forums.com/gallery/47/medium_14755_10_09_12_7_17_44_8501503.jpeg)