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- A rat sits in the road outside 10 Downing Street, the official residence of Britain's Prime Minister, in central London on May 12, 2020. - The British government on Monday published what it said was a "cautious roadmap" to ease the seven-week coronavirus lockdown in England, notably recommending people wear facemasks in some public settings. (Photo by Tolga Akmen / AFP) (Photo by TOLGA AKMEN/AFP via Getty Images)
- Lisa Wiedemann, left, service manager with Rose Pest Solutions, places five dead rats into a plastic bag for disposal as Joe Kennington, center, certified technician and Scott Kaufman, account manager, look on after they check various traps behind a building in Chicago on April 17, 2020. (Photo by Jose M. Osorio / Chicago Tribune/TNS/Sipa USA)
- Lisa Wiedemann, service manager with Rose Pest Solutions, holds four dead juvenile rats and a dead adult rat as she checks various traps behind a building in Chicago on April 17, 2020. Rats in Chicago are on the move now that their usual food source may be drying up because of the stay-at-home order. (Photo by Jose M. Osorio/Chicago Tribune/TNS/Sipa USA)
- A rat sniffs for food at Klong Toei wet market in Bangkok on April 10, 2020 as Thailand's confinement measures to reduce the spread of the COVID-19 novel coronavirus made their source of food more scarce. - As humans retreat indoors at night to fight a virus, Bangkok's streets are handed over to increasingly brazen rats who are venturing out across the Thai capital in huge numbers. (Photo by Mladen ANTONOV / AFP) (Photo by MLADEN ANTONOV/AFP via Getty Images)
- A rat is seen as Chow Kit wet market was disinfected during the Movement Control Order, limiting the activities of people in Malaysia as a preventive measure against the spread of the COVID-19 novel coronavirus, in Kuala Lumpur on March 25, 2020. (Photo by Mohd RASFAN / AFP) (Photo by MOHD RASFAN/AFP via Getty Images)
- A rodent looks out from a device with poisonous bait on Bourbon Street in New Orleans, Monday, March 23, 2020. Complicating New Orleans' fight against the new coronavirus spread, rats and mice are abandoning their hiding places in walls and rafters of shuttered businesses and venturing outside. On Bourbon Street, workers in protective clothing placed poisonous bait in storm drains and set out traps. "Unfortunately, what's happening is, many of these rodents are looking for an alternative food source," Claudia Riegel, the city's pest control director, said Monday. (AP Photo/Gerald Herbert)
- A rat sniffs for food in front of a sitting man and his dog at Klong Toei wet market in Bangkok on April 10, 2020 as Thailand's confinement measures to reduce the spread of the COVID-19 novel coronavirus made their source of food more scarce. - As humans retreat indoors at night to fight a virus, Bangkok's streets are handed over to increasingly brazen rats who are venturing out across the Thai capital in huge numbers. (Photo by Mladen ANTONOV / AFP) (Photo by MLADEN ANTONOV/AFP via Getty Images)
- A rat sniffs for food at Klong Toei wet market in Bangkok on April 10, 2020 as Thailand's confinement measures to reduce the spread of the COVID-19 novel coronavirus made their source of food more scarce. - As humans retreat indoors at night to fight a virus, Bangkok's streets are handed over to increasingly brazen rats who are venturing out across the Thai capital in huge numbers. (Photo by Mladen ANTONOV / AFP) (Photo by MLADEN ANTONOV/AFP via Getty Images)
- A rat sniffs for food at Klong Toei wet market in Bangkok on April 10, 2020 as Thailand's confinement measures to reduce the spread of the COVID-19 novel coronavirus made their source of food more scarce. - As humans retreat indoors at night to fight a virus, Bangkok's streets are handed over to increasingly brazen rats who are venturing out across the Thai capital in huge numbers. (Photo by Mladen ANTONOV / AFP) (Photo by MLADEN ANTONOV/AFP via Getty Images)