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).
Always call 911 if you are in immediate danger and need emergency help. Tornadoes can strike with little or no warning. If you live in an area where tornadoes occur, prepare ahead of time. If you are under a tornado WARNING, seek shelter immediately! Prepare for a tornado - information to help residents, communities, and businesses understand the dangers and plan ahead. Current watches and warnings.