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.
Mites of domestic animals
Compared to ticks and insects of domestic animals the parasitic mites are of limited importance as transmitters (vectors) of pathogenic organisms to domestic animals. Some mites are the intermediate host of parasitic worms, but not defined as vectors because they do not parasitize a host. For example, free living mites of the family Oribatidae ingest the eggs of "Moniezia expansa" tapeworm of sheep; the sheep then ingest the mites whilst grazing. "Dermanyssus gallinae" has been shown to transmit the virus causing St Louis encephalitis virus between chickens. (the main transmitters of this virus to humans are "Culex" mosquitoes). Various species of trombiculid mite transmit the bacterium "Orientia tsutsugamushi", the causative agent of scrub-typhus, a notorious disease of humans in South East Asia. "Leptotrombidium deliniense" is the most important of several species of mite transmitting this bacterium.