He speculates that patients and their insurers will balk at paying the bill for any quarantines.
The city's public hospitals have more than 1, 400 isolation beds that allow for swift quarantines.
Mr Harrison follows the loosening of quarantines as the tides of free trade rose in the mid-19th century.
Neither quarantines nor eradication programmes, nor even disease detectives, will be enough to guard mankind against the next outbreak.
Neither Britain nor the United States have issued any travel warnings or quarantines.
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The authorities in the affected provinces have attempted to stamp out the disease by employing quarantines and limiting animal movements in susceptible areas.
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They said longer quarantines might be necessary to stop the virus' spread and noted people with underlying medical conditions could be at higher risk.
Lambert said businesses can still transport wood to mills in New York, which has emerald ash borer quarantines in counties that border Berkshire County.
About another 110 people who were on the Aeromexico plane went on to other destinations, and may face quarantines elsewhere, the news agency said.
That might indicate the infestation is isolated, but federal officials are hesitant to endorse quarantines in areas smaller than a county, said Nate Seigert, a U.S. Forest Service entomologist.
"Back in the Midwest when they had this, they had a lot of experience with smaller quarantines and (the infestation) was bigger than what they had anticipated, " he said.
Commerce was already associated with infection during the Black Death, though it would be hundreds of years before rats were singled out as its carrier, and the first quarantines followed soon after.
When the plague reappeared in Britain and on the continent in the 1660s, European countries used tit-for-tat quarantines to keep out competitors, skim fees from merchants, reassure trading partners and punish those who quarantined them.
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