今天看了一下《科学美国人》的这篇文章，蛮有趣的。卫生部长肯尼迪和农业部长Brooke Rollins，想了个办法就是停止扑杀感染禽流感的家禽，并放任病毒在养殖场自然传播，以此筛选出具有天然免疫力的鸡。很有想象力对不对？ 可惜的是，H5N1之类禽流感病毒对家禽杀伤力极强，感染的病鸡迅速死亡，并不能出现自然免疫出现超级健康鸡。反而在放任几百万几千万病鸡感染的过程中，病毒进化速度更快，筛选不出超级鸡，却会培养出更强的禽流感病毒。而就算家禽里的流行不带来病毒新变种，禽流感在野外也会不停的进化，这种防疫法无异于刻舟求剑。 其实这种拍脑袋的想法就类似于让杀伤力极强的埃博拉病毒放开传播，寄希望于会出现超级人抵抗这个病毒，最后人类都是这个能自己抵抗埃博拉的超级人的后代。可惜埃博拉杀人太快，这样的超级人从没出现过。抵抗埃博拉靠的是医疗干预和人工研发疫苗。 更让农业学家傻眼的是，蛋鸡和肉鸡并不是上一代蛋鸡和肉鸡的后代，而是专门的父母代育种鸡的后代，所以就算杀遍蛋鸡和肉鸡去筛出了超级蛋鸡和超级肉鸡，它们也不适合用来大规模产生鸡苗培育下一代肉鸡蛋鸡。这种傻瓜问题大概就是12岁小孩会问的：为啥公猪肉不能吃，母猪肉也不能吃，除了公猪和母猪外还有什么猪？公猪和母猪就是种猪，肉猪则是种猪的后代苗猪养大而成的，肉猪不会是肉猪的后代，而作为种猪的公猪和母猪也不能杀了卖肉，那肉不能吃。可惜我们的卫生部长和农业部长都不知道这回事。 https://www.scientificamerican.com/article/rfk-jr-wants-to-let-bird-flu-spread-on-poultry-farms-why-experts-are/ RFK, Jr. Wants to Let Bird Flu Spread on Poultry Farms. Health secretary RFK, Jr. has repeatedly suggested that farmers should let bird flu spread through flocks. Experts explain why that’s a dangerous idea. With H5N1 avian influenza spreading in poultry flocks, Secretary of Health and Human Services Robert F. Kennedy, Jr., is pushing a new plan: let the virus rip. Kennedy recently told Fox News that by letting the highly pathogenic bird flu spread through flocks, farmers could “identify the birds, and preserve the birds, that are immune to it.” But poultry experts say that, in addition to causing an unimaginable poultry death toll, this plan wouldn’t work. “No, not for this disease,” says Rocio Crespo, a poultry veterinarian at the North Carolina State University College of Veterinary Medicine. “This is crazy.” How Bird Flu Impacts Farms Farmers must currently cull infected flocks to contain the disease before it spreads. They’re financially compensated for the culled birds by the U.S. Department of Agriculture. The policy is supported by science because highly pathogenic avian influenza is so deadly on its own, killing 90 to 100 percent of chickens in three or four days, says Matt Koci, an immunologist and virologist at North Carolina State University’s poultry science department. The disease overwhelms birds, Crespo says. “It’s devastating,” she says. “It’s a disease that attacks every single organ.” As a result, the chickens never develop the antibodies that would beat back the flu and give them the ability to survive a second encounter with the virus —they die too quickly. That means there is little for scientists to study to develop treatments or uncover some genetic secret to resistance, Koci says. Genetic resistance in chickens and turkeys “is not a thing,” he says. What the Experts Say Even with avian diseases that are slower-acting than highly pathogenic bird flu, scientists have struggled to find a key to genetic resistance. Huaijun Zhou, a professor of animal science at the University of California, Davis, worked on a project on Newcastle disease, another viral illness that is also nearly always fatal in poultry but that some infected birds can survive for weeks. “We didn’t find any magic bullet,” Zhou says. There were genetic variants in chickens that allowed the birds to survive longer with Newcastle disease. Yet each one had a tiny effect, and it took a combination of hundreds of them to make a noticeable difference in survival. “It’s just the nature of the disease,” says Zhou, adding that the bird flu’s high mortality rate makes success even less likely. Kennedy’s remarks belie a lack of knowledge about the way poultry breeding works, Koci says. The chickens that provide meat and eggs are not in the breeding population: they’re the product of parent generations that are bred to maximize disease resistance and meat or egg production. Wiping out the working offspring of these breeders wouldn’t do anything to alter the next generations of chickens coming down the line. Another problem with the let-it-rip strategy would be the inability of farmers to sell chicken products internationally because the policy might lead importers to ban American products. The resulting mass poultry death would also make today’s egg prices look like a great deal. “The Chick-fil-A’s and the Kentucky Fried Chickens and all the chicken dinners you have, forget it,” Crespo says, “gone.” How Scientists Are Tackling the Bird Flu Crisis Culling and containment have been successful at controlling bird flu in the U.S. since the 1980s, Koci says. The currently circulating strain, however, has thrown a wrench in the system by finding new ways onto poultry farms. In the past, bird flu spread to new farms through the droppings of infected migratory birds, meaning the danger was largely limited to summer and fall, when these birds passed through. Now the disease is in nonmigratory wild birds, as well as wild mammals. The risk is year-round, and scientists aren’t entirely sure how the virus gets onto farms. “We’re trying to understand: ‘Can we figure out these other point sources, and can we change how we do biosecurity?’” Koci says. In the longer term, Zhou says, researchers are looking at genetic variations in the way poultry respond to vaccination. Currently, vaccines are not used because, although they can keep chickens alive, they don’t prevent infection. That means that infected chickens could spread disease even if they were vaccinated, so farmers wouldn’t be able to export products from such inoculated birds. Understanding why the immune systems of some chickens respond better than others could help scientists develop vaccines that better tamp down transmission. Kennedy does not have a say in the U.S.’s agricultural policies. But, as the New York Times reported on Tuesday, Secretary of Agriculture Brooke Rollins has also indicated support for the let-it-rip idea, telling Fox News that some farmers are interested in piloting the strategy. In a statement, Emily Hilliard, the deputy press secretary at the Department of Health and Human Services said, “We want to keep people away from the most dangerous version of the current bird flu, which is found in chickens. Culling puts people at the highest risk of exposure, which is why Secretary Kennedy and NIH want to limit culling activities. Culling is not the solution. Strong biosecurity is.” But viral spread leads to more viral particles in the environment, begetting more viral spread, Crespo says. And a no-cull policy would expose farmworkers to sick chickens, according to Koci. “You’re exposing more humans to more chickens,” he says, “and just buying more lottery tickets for that pandemic strain.”
mtwash 发表于 2025-03-25 16:22 今天看了一下《科学美国人》的这篇文章，蛮有趣的。卫生部长肯尼迪和农业部长Brooke Rollins，想了个办法就是停止扑杀感染禽流感的家禽，并放任病毒在养殖场自然传播，以此筛选出具有天然免疫力的鸡。很有想象力对不对？ 可惜的是，H5N1之类禽流感病毒对家禽杀伤力极强，感染的病鸡迅速死亡，并不能出现自然免疫出现超级健康鸡。反而在放任几百万几千万病鸡感染的过程中，病毒进化速度更快，筛选不出超级鸡，却会培养出更强的禽流感病毒。而就算家禽里的流行不带来病毒新变种，禽流感在野外也会不停的进化，这种防疫法无异于刻舟求剑。 其实这种拍脑袋的想法就类似于让杀伤力极强的埃博拉病毒放开传播，寄希望于会出现超级人抵抗这个病毒，最后人类都是这个能自己抵抗埃博拉的超级人的后代。可惜埃博拉杀人太快，这样的超级人从没出现过。抵抗埃博拉靠的是医疗干预和人工研发疫苗。 更让农业学家傻眼的是，蛋鸡和肉鸡并不是上一代蛋鸡和肉鸡的后代，而是专门的父母代育种鸡的后代，所以就算杀遍蛋鸡和肉鸡去筛出了超级蛋鸡和超级肉鸡，它们也不适合用来大规模产生鸡苗培育下一代肉鸡蛋鸡。这种傻瓜问题大概就是12岁小孩会问的：为啥公猪肉不能吃，母猪肉也不能吃，除了公猪和母猪外还有什么猪？公猪和母猪就是种猪，肉猪则是种猪的后代苗猪养大而成的，肉猪不会是肉猪的后代，而作为种猪的公猪和母猪也不能杀了卖肉，那肉不能吃。可惜我们的卫生部长和农业部长都不知道这回事。 https://www.scientificamerican.com/article/rfk-jr-wants-to-let-bird-flu-spread-on-poultry-farms-why-experts-are/ RFK, Jr. Wants to Let Bird Flu Spread on Poultry Farms. Health secretary RFK, Jr. has repeatedly suggested that farmers should let bird flu spread through flocks. Experts explain why that’s a dangerous idea. With H5N1 avian influenza spreading in poultry flocks, Secretary of Health and Human Services Robert F. Kennedy, Jr., is pushing a new plan: let the virus rip. Kennedy recently told Fox News that by letting the highly pathogenic bird flu spread through flocks, farmers could “identify the birds, and preserve the birds, that are immune to it.” But poultry experts say that, in addition to causing an unimaginable poultry death toll, this plan wouldn’t work. “No, not for this disease,” says Rocio Crespo, a poultry veterinarian at the North Carolina State University College of Veterinary Medicine. “This is crazy.” How Bird Flu Impacts Farms Farmers must currently cull infected flocks to contain the disease before it spreads. They’re financially compensated for the culled birds by the U.S. Department of Agriculture. The policy is supported by science because highly pathogenic avian influenza is so deadly on its own, killing 90 to 100 percent of chickens in three or four days, says Matt Koci, an immunologist and virologist at North Carolina State University’s poultry science department. The disease overwhelms birds, Crespo says. “It’s devastating,” she says. “It’s a disease that attacks every single organ.” As a result, the chickens never develop the antibodies that would beat back the flu and give them the ability to survive a second encounter with the virus —they die too quickly. That means there is little for scientists to study to develop treatments or uncover some genetic secret to resistance, Koci says. Genetic resistance in chickens and turkeys “is not a thing,” he says. What the Experts Say Even with avian diseases that are slower-acting than highly pathogenic bird flu, scientists have struggled to find a key to genetic resistance. Huaijun Zhou, a professor of animal science at the University of California, Davis, worked on a project on Newcastle disease, another viral illness that is also nearly always fatal in poultry but that some infected birds can survive for weeks. “We didn’t find any magic bullet,” Zhou says. There were genetic variants in chickens that allowed the birds to survive longer with Newcastle disease. Yet each one had a tiny effect, and it took a combination of hundreds of them to make a noticeable difference in survival. “It’s just the nature of the disease,” says Zhou, adding that the bird flu’s high mortality rate makes success even less likely. Kennedy’s remarks belie a lack of knowledge about the way poultry breeding works, Koci says. The chickens that provide meat and eggs are not in the breeding population: they’re the product of parent generations that are bred to maximize disease resistance and meat or egg production. Wiping out the working offspring of these breeders wouldn’t do anything to alter the next generations of chickens coming down the line. Another problem with the let-it-rip strategy would be the inability of farmers to sell chicken products internationally because the policy might lead importers to ban American products. The resulting mass poultry death would also make today’s egg prices look like a great deal. “The Chick-fil-A’s and the Kentucky Fried Chickens and all the chicken dinners you have, forget it,” Crespo says, “gone.” How Scientists Are Tackling the Bird Flu Crisis Culling and containment have been successful at controlling bird flu in the U.S. since the 1980s, Koci says. The currently circulating strain, however, has thrown a wrench in the system by finding new ways onto poultry farms. In the past, bird flu spread to new farms through the droppings of infected migratory birds, meaning the danger was largely limited to summer and fall, when these birds passed through. Now the disease is in nonmigratory wild birds, as well as wild mammals. The risk is year-round, and scientists aren’t entirely sure how the virus gets onto farms. “We’re trying to understand: ‘Can we figure out these other point sources, and can we change how we do biosecurity?’” Koci says. In the longer term, Zhou says, researchers are looking at genetic variations in the way poultry respond to vaccination. Currently, vaccines are not used because, although they can keep chickens alive, they don’t prevent infection. That means that infected chickens could spread disease even if they were vaccinated, so farmers wouldn’t be able to export products from such inoculated birds. Understanding why the immune systems of some chickens respond better than others could help scientists develop vaccines that better tamp down transmission. Kennedy does not have a say in the U.S.’s agricultural policies. But, as the New York Times reported on Tuesday, Secretary of Agriculture Brooke Rollins has also indicated support for the let-it-rip idea, telling Fox News that some farmers are interested in piloting the strategy. In a statement, Emily Hilliard, the deputy press secretary at the Department of Health and Human Services said, “We want to keep people away from the most dangerous version of the current bird flu, which is found in chickens. Culling puts people at the highest risk of exposure, which is why Secretary Kennedy and NIH want to limit culling activities. Culling is not the solution. Strong biosecurity is.” But viral spread leads to more viral particles in the environment, begetting more viral spread, Crespo says. And a no-cull policy would expose farmworkers to sick chickens, according to Koci. “You’re exposing more humans to more chickens,” he says, “and just buying more lottery tickets for that pandemic strain.”
mtwash 发表于 2025-03-25 16:22 今天看了一下《科学美国人》的这篇文章，蛮有趣的。卫生部长肯尼迪和农业部长Brooke Rollins，想了个办法就是停止扑杀感染禽流感的家禽，并放任病毒在养殖场自然传播，以此筛选出具有天然免疫力的鸡。很有想象力对不对？ 可惜的是，H5N1之类禽流感病毒对家禽杀伤力极强，感染的病鸡迅速死亡，并不能出现自然免疫出现超级健康鸡。反而在放任几百万几千万病鸡感染的过程中，病毒进化速度更快，筛选不出超级鸡，却会培养出更强的禽流感病毒。而就算家禽里的流行不带来病毒新变种，禽流感在野外也会不停的进化，这种防疫法无异于刻舟求剑。 其实这种拍脑袋的想法就类似于让杀伤力极强的埃博拉病毒放开传播，寄希望于会出现超级人抵抗这个病毒，最后人类都是这个能自己抵抗埃博拉的超级人的后代。可惜埃博拉杀人太快，这样的超级人从没出现过。抵抗埃博拉靠的是医疗干预和人工研发疫苗。 更让农业学家傻眼的是，蛋鸡和肉鸡并不是上一代蛋鸡和肉鸡的后代，而是专门的父母代育种鸡的后代，所以就算杀遍蛋鸡和肉鸡去筛出了超级蛋鸡和超级肉鸡，它们也不适合用来大规模产生鸡苗培育下一代肉鸡蛋鸡。这种傻瓜问题大概就是12岁小孩会问的：为啥公猪肉不能吃，母猪肉也不能吃，除了公猪和母猪外还有什么猪？公猪和母猪就是种猪，肉猪则是种猪的后代苗猪养大而成的，肉猪不会是肉猪的后代，而作为种猪的公猪和母猪也不能杀了卖肉，那肉不能吃。可惜我们的卫生部长和农业部长都不知道这回事。 https://www.scientificamerican.com/article/rfk-jr-wants-to-let-bird-flu-spread-on-poultry-farms-why-experts-are/ RFK, Jr. Wants to Let Bird Flu Spread on Poultry Farms. Health secretary RFK, Jr. has repeatedly suggested that farmers should let bird flu spread through flocks. Experts explain why that’s a dangerous idea. With H5N1 avian influenza spreading in poultry flocks, Secretary of Health and Human Services Robert F. Kennedy, Jr., is pushing a new plan: let the virus rip. Kennedy recently told Fox News that by letting the highly pathogenic bird flu spread through flocks, farmers could “identify the birds, and preserve the birds, that are immune to it.” But poultry experts say that, in addition to causing an unimaginable poultry death toll, this plan wouldn’t work. “No, not for this disease,” says Rocio Crespo, a poultry veterinarian at the North Carolina State University College of Veterinary Medicine. “This is crazy.” How Bird Flu Impacts Farms Farmers must currently cull infected flocks to contain the disease before it spreads. They’re financially compensated for the culled birds by the U.S. Department of Agriculture. The policy is supported by science because highly pathogenic avian influenza is so deadly on its own, killing 90 to 100 percent of chickens in three or four days, says Matt Koci, an immunologist and virologist at North Carolina State University’s poultry science department. The disease overwhelms birds, Crespo says. “It’s devastating,” she says. “It’s a disease that attacks every single organ.” As a result, the chickens never develop the antibodies that would beat back the flu and give them the ability to survive a second encounter with the virus —they die too quickly. That means there is little for scientists to study to develop treatments or uncover some genetic secret to resistance, Koci says. Genetic resistance in chickens and turkeys “is not a thing,” he says. What the Experts Say Even with avian diseases that are slower-acting than highly pathogenic bird flu, scientists have struggled to find a key to genetic resistance. Huaijun Zhou, a professor of animal science at the University of California, Davis, worked on a project on Newcastle disease, another viral illness that is also nearly always fatal in poultry but that some infected birds can survive for weeks. “We didn’t find any magic bullet,” Zhou says. There were genetic variants in chickens that allowed the birds to survive longer with Newcastle disease. Yet each one had a tiny effect, and it took a combination of hundreds of them to make a noticeable difference in survival. “It’s just the nature of the disease,” says Zhou, adding that the bird flu’s high mortality rate makes success even less likely. Kennedy’s remarks belie a lack of knowledge about the way poultry breeding works, Koci says. The chickens that provide meat and eggs are not in the breeding population: they’re the product of parent generations that are bred to maximize disease resistance and meat or egg production. Wiping out the working offspring of these breeders wouldn’t do anything to alter the next generations of chickens coming down the line. Another problem with the let-it-rip strategy would be the inability of farmers to sell chicken products internationally because the policy might lead importers to ban American products. The resulting mass poultry death would also make today’s egg prices look like a great deal. “The Chick-fil-A’s and the Kentucky Fried Chickens and all the chicken dinners you have, forget it,” Crespo says, “gone.” How Scientists Are Tackling the Bird Flu Crisis Culling and containment have been successful at controlling bird flu in the U.S. since the 1980s, Koci says. The currently circulating strain, however, has thrown a wrench in the system by finding new ways onto poultry farms. In the past, bird flu spread to new farms through the droppings of infected migratory birds, meaning the danger was largely limited to summer and fall, when these birds passed through. Now the disease is in nonmigratory wild birds, as well as wild mammals. The risk is year-round, and scientists aren’t entirely sure how the virus gets onto farms. “We’re trying to understand: ‘Can we figure out these other point sources, and can we change how we do biosecurity?’” Koci says. In the longer term, Zhou says, researchers are looking at genetic variations in the way poultry respond to vaccination. Currently, vaccines are not used because, although they can keep chickens alive, they don’t prevent infection. That means that infected chickens could spread disease even if they were vaccinated, so farmers wouldn’t be able to export products from such inoculated birds. Understanding why the immune systems of some chickens respond better than others could help scientists develop vaccines that better tamp down transmission. Kennedy does not have a say in the U.S.’s agricultural policies. But, as the New York Times reported on Tuesday, Secretary of Agriculture Brooke Rollins has also indicated support for the let-it-rip idea, telling Fox News that some farmers are interested in piloting the strategy. In a statement, Emily Hilliard, the deputy press secretary at the Department of Health and Human Services said, “We want to keep people away from the most dangerous version of the current bird flu, which is found in chickens. Culling puts people at the highest risk of exposure, which is why Secretary Kennedy and NIH want to limit culling activities. Culling is not the solution. Strong biosecurity is.” But viral spread leads to more viral particles in the environment, begetting more viral spread, Crespo says. And a no-cull policy would expose farmworkers to sick chickens, according to Koci. “You’re exposing more humans to more chickens,” he says, “and just buying more lottery tickets for that pandemic strain.”
US to import millions of eggs from Turkey and South Korea to ease prices. The Trump administration is planning to import eggs from Turkey and South Korea and is in talks with other countries in hopes of easing all-time high prices for the American consumer, officials confirmed.4 days ago Trump may be forced to import eggs from Canada despite tariff threats as prices set to soar 41% Prices to come down? After being rejected by Poland, Finland and Denmark, these countries will supply eggs to the U.S https://m.economictimes.com/news/international/us/prices-to-come-down-after-being-rejected-by-poland-finland-and-denmark-these-countries-will-supply-eggs-to-the-u-s/amp_articleshow/119344455.cms 还有，现在墨西哥和美国边境走私猛涨的是鸡蛋，lol
可惜的是，H5N1之类禽流感病毒对家禽杀伤力极强，感染的病鸡迅速死亡，并不能出现自然免疫出现超级健康鸡。反而在放任几百万几千万病鸡感染的过程中，病毒进化速度更快，筛选不出超级鸡，却会培养出更强的禽流感病毒。而就算家禽里的流行不带来病毒新变种，禽流感在野外也会不停的进化，这种防疫法无异于刻舟求剑。
其实这种拍脑袋的想法就类似于让杀伤力极强的埃博拉病毒放开传播，寄希望于会出现超级人抵抗这个病毒，最后人类都是这个能自己抵抗埃博拉的超级人的后代。可惜埃博拉杀人太快，这样的超级人从没出现过。抵抗埃博拉靠的是医疗干预和人工研发疫苗。
更让农业学家傻眼的是，蛋鸡和肉鸡并不是上一代蛋鸡和肉鸡的后代，而是专门的父母代育种鸡的后代，所以就算杀遍蛋鸡和肉鸡去筛出了超级蛋鸡和超级肉鸡，它们也不适合用来大规模产生鸡苗培育下一代肉鸡蛋鸡。这种傻瓜问题大概就是12岁小孩会问的：为啥公猪肉不能吃，母猪肉也不能吃，除了公猪和母猪外还有什么猪？公猪和母猪就是种猪，肉猪则是种猪的后代苗猪养大而成的，肉猪不会是肉猪的后代，而作为种猪的公猪和母猪也不能杀了卖肉，那肉不能吃。可惜我们的卫生部长和农业部长都不知道这回事。
https://www.scientificamerican.com/article/rfk-jr-wants-to-let-bird-flu-spread-on-poultry-farms-why-experts-are/
RFK, Jr. Wants to Let Bird Flu Spread on Poultry Farms. Health secretary RFK, Jr. has repeatedly suggested that farmers should let bird flu spread through flocks. Experts explain why that’s a dangerous idea.
With H5N1 avian influenza spreading in poultry flocks, Secretary of Health and Human Services Robert F. Kennedy, Jr., is pushing a new plan: let the virus rip.
Kennedy recently told Fox News that by letting the highly pathogenic bird flu spread through flocks, farmers could “identify the birds, and preserve the birds, that are immune to it.”
But poultry experts say that, in addition to causing an unimaginable poultry death toll, this plan wouldn’t work.
“No, not for this disease,” says Rocio Crespo, a poultry veterinarian at the North Carolina State University College of Veterinary Medicine. “This is crazy.”
How Bird Flu Impacts Farms Farmers must currently cull infected flocks to contain the disease before it spreads. They’re financially compensated for the culled birds by the U.S. Department of Agriculture. The policy is supported by science because highly pathogenic avian influenza is so deadly on its own, killing 90 to 100 percent of chickens in three or four days, says Matt Koci, an immunologist and virologist at North Carolina State University’s poultry science department.
The disease overwhelms birds, Crespo says. “It’s devastating,” she says. “It’s a disease that attacks every single organ.”
As a result, the chickens never develop the antibodies that would beat back the flu and give them the ability to survive a second encounter with the virus —they die too quickly. That means there is little for scientists to study to develop treatments or uncover some genetic secret to resistance, Koci says. Genetic resistance in chickens and turkeys “is not a thing,” he says.
What the Experts Say Even with avian diseases that are slower-acting than highly pathogenic bird flu, scientists have struggled to find a key to genetic resistance. Huaijun Zhou, a professor of animal science at the University of California, Davis, worked on a project on Newcastle disease, another viral illness that is also nearly always fatal in poultry but that some infected birds can survive for weeks. “We didn’t find any magic bullet,” Zhou says.
There were genetic variants in chickens that allowed the birds to survive longer with Newcastle disease. Yet each one had a tiny effect, and it took a combination of hundreds of them to make a noticeable difference in survival. “It’s just the nature of the disease,” says Zhou, adding that the bird flu’s high mortality rate makes success even less likely.
Kennedy’s remarks belie a lack of knowledge about the way poultry breeding works, Koci says. The chickens that provide meat and eggs are not in the breeding population: they’re the product of parent generations that are bred to maximize disease resistance and meat or egg production. Wiping out the working offspring of these breeders wouldn’t do anything to alter the next generations of chickens coming down the line.
Another problem with the let-it-rip strategy would be the inability of farmers to sell chicken products internationally because the policy might lead importers to ban American products. The resulting mass poultry death would also make today’s egg prices look like a great deal.
“The Chick-fil-A’s and the Kentucky Fried Chickens and all the chicken dinners you have, forget it,” Crespo says, “gone.”
How Scientists Are Tackling the Bird Flu Crisis Culling and containment have been successful at controlling bird flu in the U.S. since the 1980s, Koci says. The currently circulating strain, however, has thrown a wrench in the system by finding new ways onto poultry farms. In the past, bird flu spread to new farms through the droppings of infected migratory birds, meaning the danger was largely limited to summer and fall, when these birds passed through. Now the disease is in nonmigratory wild birds, as well as wild mammals. The risk is year-round, and scientists aren’t entirely sure how the virus gets onto farms.
“We’re trying to understand: ‘Can we figure out these other point sources, and can we change how we do biosecurity?’” Koci says.
In the longer term, Zhou says, researchers are looking at genetic variations in the way poultry respond to vaccination. Currently, vaccines are not used because, although they can keep chickens alive, they don’t prevent infection. That means that infected chickens could spread disease even if they were vaccinated, so farmers wouldn’t be able to export products from such inoculated birds. Understanding why the immune systems of some chickens respond better than others could help scientists develop vaccines that better tamp down transmission.
Kennedy does not have a say in the U.S.’s agricultural policies. But, as the New York Times reported on Tuesday, Secretary of Agriculture Brooke Rollins has also indicated support for the let-it-rip idea, telling Fox News that some farmers are interested in piloting the strategy.
In a statement, Emily Hilliard, the deputy press secretary at the Department of Health and Human Services said, “We want to keep people away from the most dangerous version of the current bird flu, which is found in chickens. Culling puts people at the highest risk of exposure, which is why Secretary Kennedy and NIH want to limit culling activities. Culling is not the solution. Strong biosecurity is.”
But viral spread leads to more viral particles in the environment, begetting more viral spread, Crespo says.
And a no-cull policy would expose farmworkers to sick chickens, according to Koci. “You’re exposing more humans to more chickens,” he says, “and just buying more lottery tickets for that pandemic strain.”
可不能低估他们这群人的草台性！
不如老川， 老川至少还知道有病要治，灌消毒水就行
哈哈哈哈哈😂😂😂🤣
哈哈哈，我看行
先从喝马药开始
百贱无敌 差不多
美国人民好日无边啊
和美国抗疫一个思路，等到都染上covid，大家就不怕传染了。
医学名词： 群体免疫
以后要买进口鸡蛋或戒吃鸡蛋了。
连蛋糕甜点也戒了。
无语了
看到版上说鸡蛋价钱下来了，结果去超市我们这儿鸡蛋价钱一直在涨，不过现在有货了，以前有几周都买不到
看得笑了
US to import millions of eggs from Turkey and South Korea to ease prices. The Trump administration is planning to import eggs from Turkey and South Korea and is in talks with other countries in hopes of easing all-time high prices for the American consumer, officials confirmed.4 days ago
Trump may be forced to import eggs from Canada despite tariff threats as prices set to soar 41%
Prices to come down? After being rejected by Poland, Finland and Denmark, these countries will supply eggs to the U.S https://m.economictimes.com/news/international/us/prices-to-come-down-after-being-rejected-by-poland-finland-and-denmark-these-countries-will-supply-eggs-to-the-u-s/amp_articleshow/119344455.cms
还有，现在墨西哥和美国边境走私猛涨的是鸡蛋，lol
推特上也是一帮右派在吹嘘鸡蛋价格跌了，昨天去看了，Costco只有白鸡蛋一种没涨价但限购，其他超市又涨了，估计是进口蛋。
Thanks
进口鸡蛋吧，我们这超市开始贴标签注明本地产有机鸡蛋，表示品质纯正优良，比进口鸡蛋好。看了觉得蛮好玩的。本地鸡蛋可能就是胜在新鲜，其它真没啥，不过家里有人特迷信本地走地鸡鸡蛋。
不直接回到新石器时代都是美国人民的伟大胜利
全民大练xx？