The lack of hygiene, poor health, not a lot of doctors and infections not taken care of can spread a lot of diseases.
A contagion is either a disease spread by contact, the spread of such a disease, or the spread of anything harmful, as if it were a disease.
yes, there is a such thing as Russian elm disease.
An Epidemiologist studies the spread of disease.
A disease which is carried and spread by an agent (animal or microorganism) is a vector spread disease. Eg. Mosquitoes are the vectors for malaria.
Lyme disease is spread by ticks. Lyme disease can be pretty much everywhere.
Rats that were infected by the disease and have died on the side of the street to easily spread the disease
No. It does not spread by ameba. Ameba is a protozoa. Lyme disease is a tick born disease.
how does infections spread in hospitals
disease spread by mosiscoitos
If you mean Ebola/ Marburg, the nuns on the hospital reused 5 or so syringes for hundreds of patients. So if one person was infected, then the needle would infect hundreds of people a day.
it doesnt spread
Parkinson's disease does not spread from person to person. It is degenerative brain disease and is not contagious.