The difference in body temperature is sometimes only 0.2 degrees. Therefore, a high discipline in the measurement is required. The temperature should always be measured at the same time of day, preferably before getting up.The place of temperature measurement is the mouth, anus or vagina. The woman should choose one of these options and stick to it. The temperature in the mouth is slightly lower than that in the intestine or vagina. After measuring, the temperature is entered into a diagram in order to follow the course.Since other factors, such as a cold or alcohol consumption, can affect the body temperature, the temperature method is subject to uncertainties .There is a medium risk in the European Mediterranean, Israel, Japan, South Africa and many Pacific islands. The highest contagion potential is found in Central and South America, Africa and Southeast Asia.The infection usually occurs through the consumption of food and / or drinking water that has been contaminated by fecal matter. In many cases, the pathogens Echerichia coli or Camphylobacter are responsible.
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