This would depend on your definition of 'deadly'.
"Any hemorrahgic fever, like Hanta,
Dengue or Ebola. Viral diseases that can kill a weak person in hours after the first symptoms appear."
May be considered 'most deadly' as they kill quickly and horribly, as well as being highly contagious and hence have the ability to kill all humans within the virus's range.
Historically, diseases due to lack of hygiene, such as the Black Plague (spread through lice on rats inhabiting human residences), cholera and typhoid, whooping cough, Tuberculosis and other bacterial diseases have been very deadly.
In the modern world Parasitically carried disease, especially malaria, and virus's such as HIV, are probably responsible for the most deaths, even where medical assistance is available.
Kryptonite
I had to call in sick to work today because I have the flu.
You can sleep when you are sick by taking medicine made especially for nighttime use.
because he was sick
Turkey doesn't usually make you sick. But if you are eating turkey and you get sick it it doesn't necessarily mean the turkey made you sick. It could be the ingredients and contents inside the turkey.
He doesn't get sick, he has a nightmare about darkrai darkrai just made him have a bad dream
they have to give it shot but sometimes you need to make an ex-ray to check what made it sick
no hey are made of superman's cells. no hey are made of superman's cells.
What do you mean by saying sick people?
mucus is made by being sick. for example if u breath to much dirt and dust u sneeze and as u sneeze usually mucus comes up.(only if your sick or if getting sick) its also made of cells fiting so its dead cells and alive cells (mostly dead)
The term sick as a pig refers to someone who is very sick. The term sick as a dog also refers to the same thing. These phrases were made up during the 1700s without any reasoning.
No, you are not supposed to work when you are sick. The labor laws requires you to be given a sick leave.