

![]() |
A subconjunctival hemorrhage occurs when a small blood vessel breaks open and bleeds near the surface of the white of the eye (bulbar conjunctiva). It may happen without injury, and is often first noticed when you wake up and look in a mirror.
|
|
Whooping cough, also known as pertussis, is a highly contagious disease that causes classic spasms (paroxysms) of uncontrollable coughing, followed by a sharp, high-pitched intake of air, which creates the characteristic whoop of the disease's name.
|
|
Whooping cough , also known as pertussis, is a highly contagious disease which causes classic spasms A magnified image of a pertussis toxin crystal that causes whooping cough. ( National Institutes of Health/Custom Medical Stock Photo . Reproduced...
|
|
Whooping cough, also known as pertussis, is a highly contagious disease which causes classic spasms (paroxysms) of uncontrollable coughing, followed by a sharp, high-pitched intake of air which creates the characteristic whoop that is reflected in...
|


