Scientists have used an AI tool to identify which animals are most likely to contract and spread mutated versions of Covid-19. The model highlighted both pets and wild animals as likely reservoirs for the virus.
Using information about their habitats and various biological traits, researchers at the Cary Institute of Ecosystem Studies in New York developed the machine learning tool to figure out which animals had the particular ACE2 protein that the coronavirus was most likely to latch onto.
Out of 5,400 tested, the scientists narrowed it down to 540 mammalian species.
Some of its predictions have been previously documented as transmission risks, for instance, dogs, cats and bats, while farm animals like pigs and exotic zoo animals were surprise additions.
Other expected additions are minks, Sunda pangolins, and 35 species of bats – which are together ranked among the top 10% of animals most likely to spread the virus, in line with lab results.
The study, published in the Proceedings of the Royal Society journal, also ranked water buffalo, a number of primates, including gorillas and 76 rodent species as being more susceptible to infection.
The researchers taught the AI to identify patterns between rates of transmission and some 60 ecological and biological traits collected by earlier studies, including the overlap between the animal and human habitats as well as their respective lifespans, diets, and sizes.
Previously, the specific amino acid sequences had only been mapped out in around 300 species, including about 143 mammals — and figuring out which ones are more prone to infection is key to predicting the spread of the virus, researchers said.
Arinjay Banerjee at the University of Saskatchewan in Canada told the New Scientist that the results will help researchers “track viral infections and the possible emergence of animal-adapted coronavirus variants” around the world. Barbara Han, who led the study, said predictions needed to be followed up with systematic surveillance and lab studies.
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Taiwan’s president unveiled the country’s combat wing of advanced US-made F-16 fighters in a ceremony on Thursday, showing its new Air Force capabilities against mainland China.
The event, held at an air base in the southern Taiwanese city of Chiayi, saw the island commission the first combat wing of F-16 fighters, developed with US support.
The F-16 upgrades, costing T$110 billion (USD$3.95 billion), have been jointly completed by American manufacturer Lockheed Martin Corp and Taiwan’s Aerospace Industrial Development Corp.
Taiwan’s leader, Tsai Ing-wen, touted the new F-16s as ensuring that the island’s defenses would be “even stronger” in the face of increased tensions with China.
In October, Beijing sent a record 150 warplanes into Taiwan’s air defense identification zone (ADIZ) in four straight days of incursions. Over the past year, China’s Air Force has increased military activity in and around Taiwan’s ADIZ, according to Taipei.
Despite Taipei claiming it does not want to provoke a confrontation with China, the island’s president pledged that it will “do whatever it takes to defend itself.”
China has rejected claims that it is provoking conflict in Taiwan, which it sees as an integral part of its country, accusing America of “inflating” the island separatist movement, firmly stating that “Taiwan independence” is a dead end and Beijing will “take all steps” to ensure the island remains under its control. In recent years, China has become increasingly assertive about reuniting its wealthy island neighbor with the mainland.
The successful F-16 development process has been seen by Taiwan as the latest visible sign of the military partnership between Washington, DC and Taipei. Back in 2019, America approved an $8 billion sale of F-16s to Taiwan, which would bring the total number of jets in the island’s fleet to 200.
During the event, the Taiwanese president praised America for remaining steadfast in its cooperation with the island despite opposition from China. “As long as we adhere to the values of democracy and freedom, there will be more like-minded countries standing on the same front with us,” Tsai said alongside US diplomat Sandra Oudkirk.
In 2019, after the US and Taiwan agreed to upgrade the F-16 fighter jets, then-Foreign Ministry spokesperson Geng Shuang threatened to sanction American firms unless the deal was halted. Beijing opposed the military partnership between Taipei and Washington, DC, arguing that the sale violated international law, harmed relations between the countries, and breached the One China policy, which America recognizes.
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