Pathogenic viruses cause illnesses and disease.
toxins
By reproducing and multiplying rapidly. and they make us ill by attacking our cells and converting their normal functions to producing the virus.so they get your own cells to do their dirty work too (this applies for viruses)
The bodies in a fight back modeBecause the virus is affecting your body by shutting down parts of the body.
no
Because you have aids
A virus will make us sick because it disrupts the function of the cells or actually kills cells. Viruses uses healthy cells in order to replicate.
Many professional doctors do not think that a change in temperature will make a person ill.
Well, you can get ill from depression.
In general, microorganisms that can make you sick are termed "germs" by the non-medical world. Bacteria that can cause disease or sickness are termed "pathogens." There are way too many to list here and certain strains of microorganisms can be harmful while other strains of that same organism may not be.
Because it is cold which gives us sore throats etc
they attack bacteria and viruses that make us sick
Viruses can effect our life by giving us a cold. But HIV, however, can kill us. Our immune system have lymphocytes that destroy viruses by using antibodies. Viruses tell the nucleus to make copies of the viruses. So many are made, the cell explodes. HIV destroy our lymphocytes. So we get weaker and weaker and then die.