What is tick-borne encephalitis (TBE)? Tick-borne encephalitis (TBE) is an illness caused by a virus spread through tick bites. You can also get TBE by eating or drinking unpasteurized dairy products (such as milk and cheese) from infected goats, sheep, or cows. Symptoms include fever, achiness, loss of appetite, headache, nausea, and vomiting.
Tetracycline Side Effects. Common tetracycline side effects may include stomach cramps, diarrhea, skin reactions to sunlight, and fever. There are also some side effects that can indicate something serious. A few of these serious side effects of tetracycline include blurred vision, unusual headaches, and watery diarrhea. Some side effects that occur rarely (in less than 1 percent of people) include allergic reactions, hair loss, and irritation of the esophagus.
Tetracycline use should be avoided in pregnant or lactating women, and in children with developing teeth because they may result in permanent staining (dark yellow-gray teeth with a darker horizontal band that goes across the top and bottom rows of teeth), and possibly affect the growth of teeth and bones.