If you’ve been on the fence regarding whether to give up the car-dependent lifestyle and move back to the city… “Lyme Disease Cases Are Exploding. And It’s Only Going to Get Worse.”:
Since 1992, the Cary Institute [Millbrook, NY] has been compiling a record of tick ecology that they believe to be the longest continuous study of this kind in the U.S. and possibly the world. … The process for counting ticks not affixed to hosts is called a drag — the researchers pull a one-square-meter sheet of fabric along the ground for 30 meters then tally the number of ticks affixed to it. Oggenfuss holds the Cary Institute record for ticks collected in a single drag: 1,700. As horrifying as that haul was — and it would, by extrapolation, put the tick population on the Cary Institute’s 2,000-acre campus at 2 billion — Oggenfuss is quick to note it was exceptional, and tick density is irregular. Her more conservative calculations of average tick populations, based on drags done during the same time of year (August, the larval peak), are only reassuring by comparison: upward of 20,000 ticks per acre, more than 100,000 on the Henry Control grid, and more than 40 million on the Cary Institute grounds.
Here’s the bottom line for American humans: “It’s estimated that 300,000 people contract Lyme every year in the U.S., with victims found not just in traditionally tick-heavy areas like upstate New York and Maine, but also in all 50 states and Washington, D.C.”
We dug our own Lyme-infested graves by burning fossil fuels:
Human-driven climate change is making tick season longer and tick country larger. As winters get warmer and shorter, ticks become dormant later in the year (if at all should it fail to fall below freezing) and active earlier.
But the disease started in Connecticut, which is much cooler than the southern U.S. Climate change is so powerful that it is spreading ticks and Lyme disease both north and south:
When Aucott joined Johns Hopkins in 1996, Lyme disease had been a mounting concern for a number of years, but conventional wisdom held that the illness would not spread south of the Potomac River. However, he soon began seeing case referrals from first northern then southern Virginia. Lyme is now endemic in North Carolina and has moved westward to Tennessee, Kentucky, and Ohio.
How about escaping both state income tax and Lyme disease by moving to Las Vegas (check Nevada family law first; the state takes a completely different approach to custody and child support compared to the typical winner-take-all U.S. state)?
That very scenario is playing out on the U.S.-Mexico border in Mexicali, where a particular clade of brown dog tick has caused a massive outbreak of Rocky Mountain spotted fever, which can be fatal in up to 30% of cases and causes more deaths than any other tick-borne disease in North America. … While ticks need moisture to survive, the common brown dog tick requires far less than most. This particular clade takes that to the extreme, suggesting its spread could be hastened by climate change. “This tick needs it hot and it needs it dry. This tick is rooting for global warming and drought,” Foley says. As places like California and Arizona become hotter and drier, the tick’s reach will expand, she says. To compound matters, research has shown that the hotter the temperature, the more aggressive this tick becomes. “You can actually do experiments and bring the temperature up and increase the bite rate of that tick,” Foley says.
How about simply live in the city? It would be tough to get bitten by a tick in Midtown Manhattan.
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