There are three patterns of acute sinusitis:  Persistent cold symptoms. If symptoms get better in 10 days, the infection is probably viral. âBut if thereâs no improvement after 10 days, itâs likely to be bacterial at that stage,â Dr. Rosenfeld said.
Electric Tools Employees using electric tools must be aware of several dangers. Among the most serious hazards are electrical burns and shocks. Electrical shocks, which can lead to injuries such as heart failure and burns, are among the major hazards associated with electric-powered tools.
Plutonium is the most dangerous element you can handle because it is highly radioactive. Just inhaling a small amount of plutonium dust will give you lung cancer. However, plu â¦ tonium is rather hard to come by so the most dangerous element you will probably come into contact with is mercury.