Formaldehyde. Formaldehyde is a known human carcinogen widely used in many consumer products, including building materials, pressed wood, cosmetics, shoe-care products, and textiles. Natural Resources Defense Council's formaldehyde fact sheet.ormaldehyde. Formaldehyde is a known human carcinogen widely used in many consumer products, including building materials, pressed wood, cosmetics, shoe-care products, and textiles. Natural Resources Defense Council's formaldehyde fact sheet.
This is often caused by the blockage or inflammation of the salivary gland duct. Viruses and other medical conditions can also reduce saliva production, including: 1  mumps (a contagious viral infection that is most common among children who have not been immunized). 2  HIV. salivary gland infection typically results from a bacterial infection. Staphylococcus aureus is the most common. Others include: Streptococcus viridans, Haemophilus influenzae, Streptococcus pyogenes, and Escherichia coli.
In some cases, the incubation period can be as short as 12 days or as long as 25 days. A person is not contagious during the early mumps incubation period. A person is most contagious about three days prior to the onset of the swelling of the salivary glands (called parotitis) to nine days after the onset of symptoms.