The word vigil comes from the Latin word vigilia, a noun which refers to the act of staying awake and alert in order to protect, guard, or look after something. In English we refer to this activity as keeping watch.
STAPHYLOCOCCAL ENTEROTOXIN B Bioterrorism Agent Profiles for Health Care Workers Causative Agent: Staphylococcal enterotoxin B (SEB) is one of seven enterotoxins produced by strains of Staphylococcus aureus. Routes of Exposure: Humans are primarily exposed to SEB by consuming contaminated food.
The SEG in essence is a composite ring made of an electron reservoir (a rare earth like Neodymium), a magnetized accelerator stage (Iron or Nickel), an electron flow regulator stage (Nylon 66 or Teflon), and finally, a paramagnetic layer (Aluminium or Copper).