If someone were to sneeze and then they touched a tissue box the germs would be on the box and then another person comes along and touches the same box passing on the the disease. The tissue box would be the object and the person that touched the box that touched a bunch of other stuff and it will go so on and so on.
A sneeze or cough from an infected person.
inhaling infected drops of moisture.
by pathogens
inhaling infected drops of moisture
The infectious diseases can spread through air, indirect or direct contact and through body fluids like urine and saliva.
Any communicable disease is an infectious disease. See "Infectious and no infectious diseases what is the difference?" question .Common Cold Common cold and AIDS both are infectious diseases unless you take necessary precautions.
Non-infectious diseases are easier to control - because you only need to treat the individual patient. With infectious diseases - the illness is spread between people - by touching or simply breathing in the same air while in close contact.
Infectious disease in one that is spread by intimate contact with body fluids. Some of these are influenza, mononucleosis, and Chlamydia.
Infectious diseases spread either by person to person contact, or indirectly by a vector or a fomite.
An infectious disease resulting from direct or indirect contact between individuals or animals.
Infectious diseases are ones which are easily spread from person to person and can often lead to an epidemic which potentially then leads to a high volume of hospitalisation or even death. Infectious diseases can be spread by direct or indirect contact depending on the type of disease. A common cold or Flu can be spread airborne or by touching an inanimate object such as a door handle if an infected person has already touched it. The spread of some disease is so rapid, it is important to quarantine infected persons to prevent epidemics.
infectious diseases (those with bacterial or virus, or prion) you can also "catch" chemical based diseases such as contamination burns if you come into contact with someone with the chemicals on them.
The best way to find out about emerging infectious diseases would be to contact your doctor to discuss it. If you would prefer you could look on a health website or blog.
By coming in direct contact with people that have the disease, or if the nature of the illness is such that the infectious agent can survive outside the body by making contact with those infectious agents where they are left by the carriers of the disease.
Contact to a person directly, or indirect contact with a person such as touching a door knob after a sick person touched it