The Russian mass media report it concerning the Ministry of Defense of Russia. Allegedly, scientists from the University of Texas studied ticks in the territory of Ukraine, and the study coincided with a sharp increase in the number of ticks in the Russian regions bordering Ukraine and an increase in the number of cases of borreliosis (Lyme disease). It is a fake. Since the beginning of the invasion of Ukraine, the Russians have repeatedly claimed that the United States has created laboratories for the development of biological weapons. This topic became the most common in Russian propaganda. As the Polish publication Wiadomosti writes, the study of Lyme disease was published in the journal BMJ Global Health. For the publication, scientists analyzed the results of 137 studies conducted until 2021 with the participation of almost 160,000 people. The researchers obtained statistics on immunity against Lyme bacteria in Eastern Europe, Eastern Asia, Western Europe, and the Caribbean. The research was conducted in many countries, but only the Russians claimed they were trying to harm them. Russia is again manipulating information to confirm fabricated theses about American biolaboratories in Ukraine, which allegedly became one of the reasons for the invasion of Ukraine.