Mumps
Mumps is spread from person to person through contact with respiratory secretions, such as saliva from an infected person. When an infected person coughs or sneezes, the droplets aerosolize and can enter the eyes, nose, or mouth of another person. Mumps can also be spread by sharing eating utensils or cups. The virus can also survive on surfaces and then be spread after contact in a similar manner. A person infected with mumps is contagious from approximately seven days before the onset of symptoms until about eight days after symptoms start. The incubation period (time until symptoms begin) can be from 12–25 days, but is typically 16–18 days. 20-40 percent of persons infected with the mumps virus do not show symptoms, so it is possible to be infected and spread the virus without knowing it.
Anthrax mite
"Sarcoptes anthracis" was classified by Dmitri Ivanovsky in 1901 after first occurrences of infection on Asian Tufted Deers. The parasitic itch mite burrows into skin and causes sarcoptic mange, mostly seen on even-toed ungulates. Pregnant female mites tunnel into the stratum corneum of a host's skin and deposit eggs in the burrows. Young mites move about on the skin and molt into a "nymphal" stage, hosting Bacillus anthracis in their digestive tract. They act as a vector that carries and transmits anthrax to their hosts causing an infection, which often results in death because the immune system was weakened by scabies before. The high host specificity of the mites is held responsible for the fact that mostly even-toed ungulates struggled with these consequences. In late 1950s the last foci of infection were reported in semi-domesticated reindeers after which no greater incidences were observed.