See Also: Disease, Norwalk(health)
secondary disease(medicine)
Herbal medicine (botanical medicine, herbology, phytomedicine)(health)
Norwalk(tourism)
Norwalk flights(tourism)
Norwalk Hospital(health)
Norwalk car rental(tourism)
Norwalk airports(tourism)
Norwalk agent(medicine)
Norwalk virus(medicine)

secondary radiation (medicine) and Disease, Norwalk (health)


secondary radiation (medicine)


secondary radiation -->
scattered radiation
Secondary radiation emitted from the interaction of X-rays with matter; generally lower in energy, with a directional distribution which depends on the energy of the incident radiation.

Synonym: secondary radiation.


Disease, Norwalk (health)


Disease due to Norwalk virus, not one but a family of small round viruses that are an important cause of viral gastroenteritis (viral inflammation of the stomach and intestines). The Norwalk viruses are all transmitted by fecal contamination of water and foods. Person-to-person transmission is far less common but has been documented. Water is the most common source of outbreaks and may include water from municipal supplies, wells, lakes, pools, and water stored aboard cruise ships. Shellfish and salad ingredients are the foods most often implicated. Eating raw or insufficiently steamed clams and oysters poses a high risk for infection with Norwalk virus.