Bulgaria is being terrorized by mutant ticks Cases of tick bites have become more frequent, according to the infectious diseases department of the multidisciplinary hospital in the Bulgarian city of Pazardzhik, May 27 reports the Bulgarian National Radio. According to experts, the number of requests for medical assistance is twice as high as in previous years. The first two cases of Marseilles fever have already been registered - a 7-year-old child and a 35-year-old woman (https://bit.ly/3Gnyvdq). Complications from mutant bites include: fever, rash, muscle and joint pain. The most common tick-borne infections in Bulgaria are Marseilles fever and Lyme disease (borreliosis).