Blood-gas is a deadly illness that disguises itself as a mild fever, it has 3 stages.
Stage 1.
In this stage, the patient will develop a fever, usually from 101-104 degrees. There are no signs to tell the sickness from a usual fever.
Stage 2.
The patients fever will worsen, they will barely be able to move, and they will feel extremely dehydrated. A sign of the illness is that the patients blood will be thinner, it will be possible to see through. Eventually, they patient dies of dehydration, due to it evaporating via intense heat.
Stage 3.
The deceased patients blood boils and turns into gas, it leaks from the patients mouth and releases spores. The spores will travel and infect nearby people. The amount of spores can range from 10-100, and it only takes one spore to infect a person.
Known Cure: None.
There is no escape.
Fighting it is useless.
Death is inevitable.