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Blow drying clean hair after you have applied and rinsed out treatment and picked out knits can speed up the process tremendously. Spend at least five minutes blow drying hair on the hottest setting your child can stand. This is how much time it takes to kill live lice.Caregivers hired from agencies have various levels of training. These can correspond to the complexity of tasks they will be required to do. For companionship or housekeeping, you will not need a trained care aide. When you get into personal care tasks, you will. If you require medical tasks you might need a Licensed Practical Nurse (LPN) or Registered Nurse (RN). Make sure the caregiver’s skills correspond to your needs.Water-borne pathogens are disease-causing bacteria, viruses, and protozoa you can get from impure water. Protozoa are hard-shelled, single-cell parasites, or cysts, that range from 2 to 15 microns in size. The giardia lamblia cyst is one of the most common water-borne parasites in the United States. Cryptosporidium is also a protozoa, and cryptosporidiosis exhibits symptoms similar to giardiasis, including diarrhea, fatigue, fever, weight loss, nausea, and vomiting. Bacteria are smaller than protozoa, and range in size from .2 to 10 microns. They include E. coli and salmonella. Viruses are even smaller at .004 to .1 microns, and carry diseases like hepatitis.