Myth Or Reality? Health Experts Weigh in on Whether Herd Immunity Is Possible – NBC Chicago nbcchicago.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from nbcchicago.com Daily Mail and Mail on Sunday newspapers.
While there have been doubts about whether herd immunity is possible, medical experts who spoke to CNBC say it can be achieved. However, they point to a tough road ahead as sustaining a high level of immunity will be a challenge. I think that every part of the world will reach herd immunity sooner or later, said Benjamin Cowling, head of the division of epidemiology and biostatistics at the School of Public Health in the University of Hong Kong. Different communities may get there by vaccinations, infections or a combination of both, he added.
Not everyone agrees.
An article last month in scientific journal Nature outlined five reasons why reaching herd immunity may not be possible. The report said barriers to herd immunity include: new variants, waning immunity and questions over whether vaccines actually prevent transmission.
While there have been doubts about whether herd immunity is possible, medical experts who spoke to CNBC say it can be achieved. However, they point to a tough road ahead as sustaining a high level of immunity will be a challenge. I think that every part of the world will reach herd immunity sooner or later, said Benjamin Cowling, head of the division of epidemiology and biostatistics at the School of Public Health in the University of Hong Kong. Different communities may get there by vaccinations, infections or a combination of both, he added.
Not everyone agrees.
An article last month in scientific journal Nature outlined five reasons why reaching herd immunity may not be possible. The report said barriers to herd immunity include: new variants, waning immunity and questions over whether vaccines actually prevent transmission.
Low efficacy of Chinese vaccines sows concern over global rollout
China’s COVID-19 vaccines, administered in large parts of the developing world,
are not even trusted by the country’s own health officials, a researcher said
Bloomberg
Concern is mounting that China’s COVID-19 vaccines are less effective at quelling the disease, raising questions about nations from Brazil to Hungary that are depending on the shots and Beijing’s own mammoth inoculation drive.
While vaccines developed by Pfizer and Moderna, and even Russia’s Sputnik shot, have delivered protection rates of more than 90 percent, Chinese candidates have generally reported much lower efficacy results.
A vaccine expert answers your questions about the Covid-19 jab scmp.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from scmp.com Daily Mail and Mail on Sunday newspapers.