Schistosomiasis (also known as Bilharzia, snail fever, or Katayama fever) is caused by flatworm parasites that live in the blood vessels of the bladder and intestines. Schistosomiasis - also known as bilharzia, snail fever, or Katayama fever - is caused by flatworm parasites that live in the blood vessels of the bladder and intestines. Health Matters
A Tornado warning means A tornado has been  spotted/touched down in your alert area. You should take  cover if a tornado warning is issued for your area;  go into a cellar, or the lowest, most inner part of your house  where there are no windows (a downstairs or basement bathroom is  ideal).
Before a Tornado. 1  To begin preparing, you should build an emergency kit and make a family communications plan. 2  Listen to NOAA Weather Radio or to commercial radio or television newscasts for the latest information. 3  Be alert to changing weather conditions.  Look for the following danger signs: Dark, often greenish sky.