Most infections with the Anaplasma bacterium are harmless, while a few are severe. The number of chronic diseases is still unknown.
Anaplasma infections were previously associated with rickettsiosis and has since been considered as an independent infection. Anaplasma is usually transmitted to humans by ticks. The disease manifests itself in a feverish, flu-like infection with headaches. In severe cases, myalgia, liver and kidney dysfunction and inflammation of the meninges can also occur.