Human Anaplasmosis is induced by the bacterial infection Anaplasma phagocytophilum. The blacklegged tick and the western blacklegged tick are the most common carriers of these microorganisms into humans. The anaplasmosis-causing bacteria typically infect white-footed mice, deer, and other wild animals. When these animals are bitten by a tick, the tick gets sick. A tick infected with the bacterium may transmit it to people. When a tick bites an individual, the germs enter the individual’s bloodstream.
Typically, the tick must be attached for between 24 and 48 hours and grow bigger (engorged) in order to transmit the illness. Human anaplasmosis is not infectious between individuals. In rare situations, it may be obtained by blood donation or solid organ transplantation. It happens more often in the springtime and summertime. This is when the danger of human interaction with infected ticks is greatest.