“Ticks that feed on asymptomatic humans or those whose only symptom is an arthritic knee, ingest spirochetes that have been “primed” to become suddenly super-virulent when transferred to a new host–usually an innocent little mouse.”
“Ticks that feed on asymptomatic humans or those whose only symptom is an arthritic knee, ingest spirochetes that have been “primed” to become suddenly super-virulent when transferred to a new host–usually an innocent little mouse.”