Kiểm tra dấu hiệu sốt. Kiểm tra triệu chứng tiếp theo. Đi khám bác sĩ.

Given the above summary, write a detailed text in English for it.
The primary indication of typhoid infection is persistent, high fever in the range of 103° to 104° F (39° to 40° C). In general, symptoms develop within 1-3 weeks after exposure. Additional symptoms and indicators of typhoid fever include headache, general malaise or feeling of weakness, stomach pain, constipation or diarrhea, vomiting and loss of appetite. Some people also report developing a  rash of flat, lightly pink-colored spots, as well as an abnormally slow heartbeat - usually less than 60 beats per minute. If you have a high fever and feel ill, get to a doctor immediately. Keep in mind that if left untreated, typhoid fever can become fatal and as many as 20% of those infected may die from complications related to the illness.  If you are sick and may have typhoid fever, make sure to avoid contact with other people. Also, you should not prepare or serve food to other people.  If you are traveling, you can usually get in touch with your consulate to get a list of recommended (and usually English-speaking) doctors. You doctor will confirm the diagnosis through a clinical analysis of a stool sample or blood test in order to test for the presence of Salmonella Typhi. In areas without a lab or where lab results would be delayed, the doctor may assess the size of your liver and spleen by pressing down and also tapping on your organs. Enlargement of the liver and spleen is often a "positive" sign for typhoid fever.  It is important to confirm this diagnosis as the fever and additional symptoms that accompany typhoid fever overlap with other diseases common to developing regions like dengue fever, malaria, and cholera.