The first chart shows that the data is approximately normally distributed. The mean, mode and median are very close to being equal. The data show very little skewness. The mean is 166.9, standard deviation is 76.1 with 24 cases.
The boundary between contagious and non-contagious infectious diseases is not perfectly drawn, as illustrated classically by tuberculosis, which is clearly transmissible from person to person, but was not classically considered a contagious disease.he non-contagious category of infections usually require a special mode of transmission between persons or hosts. These include need for intermediate vector species (mosquitoes that cause malaria) or by non-casual transfer of bodily fluid (such as transfusions, needle sharing or sexual contact).
Infectious Diseases and Fire Fighters Infectious diseases, also known as communicable or contagious diseases, are illnesses caused by âharmful microorganisms, including bacteria, viruses, fungi and parasites.â (La Dou) Occupational infectious diseases are these same illnesses that result from a personâs exposure to these microorganisms while he or she is at work/on the job.