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.
The germs that cause bacterial meningitis can be contagious. Some bacteria can spread through the exchange (e.g., by kissing) of respiratory and throat secretions (e.g., saliva or mucus). Fortunately, most of the bacteria that cause meningitis are not as contagious as viruses that cause the common cold or the flu.ome bacteria can spread through the exchange (e.g., by kissing) of respiratory and throat secretions (e.g., saliva or mucus). Fortunately, most of the bacteria that cause meningitis are not as contagious as viruses that cause the common cold or the flu.