Tick Growth Comparison Charts

See how different species of ticks change appearance as they feed. Note the scutum stays the same size no matter how big the tick grows during feeding. Different types of ticks also transmit different germs. The dose of germs transmitted from an infected tick increases the longer a tick is feeding as does the risk for infection and disease. A day 3 infected tick is riskier than a tick attached for one day or less.

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