Articles – Page 4 – Covid-19 Notes

Duke sets new campus restrictions after rise in COVID cases among vaccinated students

In the first week of classes, 304 undergraduates, 45 graduate students and 15 employees tested positive for COVID-19. All but eight of these individuals were vaccinated, and the vast majority of them are asymptomatic. A small number have minor, cold- and flu-like symptoms, and none have been hospitalized, according to the university.

Duke sets new campus restrictions after rise in COVID cases among vaccinated students

The vast majority of the cases on campus in the first week of classes have been among individuals who are fully vaccinated and who are asymptomatic.

Are COVID vaccines for children under 12 in their best interest — or just everyone else’s?

Children are unlikely to be hospitalized with COVID and deaths are rare, but we may need them to help the rest of us reach herd immunity. Is that ethical?

New safety concerns identified for 1 in 3 FDA-approved drugs

Nearly one out of every three drugs approved by the Food and Drug Administration (FDA) have a new safety issue detected in the years after approval, says a Yale-led study.

How vaccines work

Protection from Infection or Protection from Disease?

The memory response elicited by most human viral vaccines does not protect against reinfection, but rather against the development of disease. An individual may be exposed repeatedly to viruses and never be aware of it, because the memory response eliminates the virus before signs and symptoms develop. After vaccination with inactivated poliovirus vaccine, virus replication may take place in the intestine, but effectively blocks the development of poliomyelitis. On the other hand, the human papillomavirus vaccine is over 90% effective at blocking infection. Consequently the HPV vaccine induces sterilizing immunity.

How vaccines work

Vaccines work by educating the host’s immune system to recall the identity of a virus years after the initial encounter, a phenomenon called immune memory, without the pathogenic consequences typical of a natural infection.

Does the FDA think these data justify the first full approval of a covid-19 vaccine?

Does the FDA think these data justify the first full approval of a covid-19 vaccine? - The BMJ

The FDA should demand adequate, controlled studies with long term follow up, and make data publicly available, before granting full approval to covid-19 vaccines, says Peter Doshi On 28 July [...]More...

Why we petitioned the FDA to refrain from fully approving any covid-19 vaccine this year

Why we petitioned the FDA to refrain from fully approving any covid-19 vaccine this year - The BMJ

We are part of a group of clinicians, scientists, and patient advocates who have lodged a formal “Citizen Petition” with the United States Food and Drug Administration (FDA), asking the [...]More...

U of G prof says he is receiving workplace harassment after sharing vaccine concerns

Read the full story and comment on GuelphToday.

Don’t Panic, But Breakthrough Cases May Be a Bigger Problem Than You’ve Been Told

The vaccines were never tested to prevent transmission, only symptomatic disease, and those who knew the science expected, from the outset, that we would see some number of such cases, and that they would be, overwhelmingly, mild. But Delta appears to have changed things […] and during the current surge there does seem to be considerably more “leakage” in the protection that vaccines offer against pandemic spread than has widely been acknowledged.

Don’t Panic, But Breakthrough Cases May Be a Bigger Issue Than You’ve Been Told

The vaccines work very well, but current public-health communications may be understating the frequency of infections among the vaccinated.

Directory: BC Businesses Against Health Pass

BC Businesses against Health Pass

Discover local businesses who feel that the B.C. Vaccine Cards are unconstitutional.

Fully vaccinated people still have high potential of spreading COVID-19 Delta variant, British study says

A British study has found that fully vaccinated people still have a high potential of spreading the Delta variant of COVID-19 and achieving herd immunity will be difficult.

Fully vaccinated people still have high potential of spreading COVID-19 Delta variant, British study says - The Globe and Mail

The British study found that achieving herd immunity will also be difficult