Testicular immunology
Mumps is a viral disease which causes swelling of the salivary glands and testes. The mumps virus lives in the upper respiratory tract and spreads through direct contact with saliva. Prior to widespread vaccination programs, it was a common childhood disease. Mumps is generally not serious in children, but in adults, where sperm have matured in the testis, it can cause more severe complications, such as infertility.
Pepper mild mottle virus
This virus is widespread and is found almost anywhere peppers are grown, this is because the virus is most often introduced with the pepper seed. The virus moves long distances on the seed and moves short distances via plant-to-plant contact, handling of plants by contaminated implements and workers aids in the spread of the virus. Soils with low organic matter content, specifically humus will much more readily promote the adsorption of PMMoV. Specifically, the allophanic clays and iron minerals in these soils will promote the adsorption of PMMoV.