This is an analysis mainly focusing on countries those experienced unprecedented Deaths in therecent period and the period covered is till 21st March 2022. The peak of Deaths in later monthsreached an all-time high since the beginning of the pandemic. Nine countries identified in thatcategory are Singapore, South Korea, Australia, Hong Kong, Iceland, New Zealand,… Continue reading Is high COVID-19 vaccination reducing natural immunity
Tag: natural-immunity
Systemic and mucosal IgA responses are variably induced in response to SARS-CoV-2 mRNA vaccination and are associated with protection against subsequent infection
Although SARS-CoV-2 infects the upper respiratory tract, we know little about the amount, type, and kinetics of antibodies (Ab) generated in the oral cavity in response to COVID-19 vaccination. We collected serum and saliva samples from participants receiving two doses of mRNA COVID-19 vaccines and measured the level of anti-SARS-CoV-2 Ab. We detected anti-Spike and… Continue reading Systemic and mucosal IgA responses are variably induced in response to SARS-CoV-2 mRNA vaccination and are associated with protection against subsequent infection
Rates of COVID-19 Among Unvaccinated Adults With Prior COVID-19
Risk of SARS-CoV-2 reinfection among unvaccinated people with prior COVID-19 is a subject of debate.1,2 We performed a survival analysis in a large US population to assess the degree and duration of protection associated with natural immunity in unvaccinated individuals MethodsThis cohort study used data from patients tested for SARS-CoV-2 at 1300 sites of care… Continue reading Rates of COVID-19 Among Unvaccinated Adults With Prior COVID-19
SARS-CoV-2 Naturally Acquired Immunity vs. Vaccine-induced Immunity, Reinfections versus Breakthrough Infections: a Retrospective Cohort Study
Background: Waning of protection against infection with SARS-CoV-2 conferred by 2 doses of the BNT162b2 vaccine begins shortly after inoculation and becomes substantial within four months. With that, the impact of prior infection on incident SARS-CoV-2 reinfection is unclear. Therefore, we examined the long-term protection of naturally acquired immunity (protection conferred by previous infection) compared… Continue reading SARS-CoV-2 Naturally Acquired Immunity vs. Vaccine-induced Immunity, Reinfections versus Breakthrough Infections: a Retrospective Cohort Study
Health-care workers recovered from natural SARS-CoV-2 infection should be exempt from mandatory vaccination edicts
According to etymology, the word immune derives from the Latin immunis, which means exempt from public service, untaxed; unburdened. By extension, the term immunity means exempt from a particular infectious disease, but the term is now in danger of being equated with exemption from employment because of vaccine mandates that have been implemented or proposed… Continue reading Health-care workers recovered from natural SARS-CoV-2 infection should be exempt from mandatory vaccination edicts
SARS-CoV-2 reinfections: Overview of efficacy and duration of natural and hybrid immunity
Highlights•A previous SARS-CoV-2 infection is associated with a significantly reduced risk of reinfections with efficacy lasting for at least one year and only relatively moderate waning immunity. •Natural immunity shows roughly similar effect sizes regarding protection against reinfection across different SARS-CoV-2 variants, with the exception of the Omicron variant for which data are just emerging… Continue reading SARS-CoV-2 reinfections: Overview of efficacy and duration of natural and hybrid immunity
150 Research Studies Affirm Naturally Acquired Immunity to Covid-19: Documented, Linked, and Quoted
we should not force COVID vaccines on anyone when the evidence shows that naturally acquired immunity is equal to or more robust and superior to existing vaccines. Instead, we should respect the right of the bodily integrity of individuals to decide for themselves. Public health officials and the medical establishment with the help of the… Continue reading 150 Research Studies Affirm Naturally Acquired Immunity to Covid-19: Documented, Linked, and Quoted
SARS-CoV-2 vaccines: Lights and shadows
Highglights• So far, vaccines to prevent SARS-CoV-2 infection appear as promising approach for curbing the pandemic. • Vaccines for SARS-CoV-2 are being developed using several different platforms. • Some concerns have been raised regarding the safety of SARS-CoV-2 vaccines on the basis of rare adverse reactions, particularly thromboembolic. • The applicability to the real life… Continue reading SARS-CoV-2 vaccines: Lights and shadows
Prevalence and Durability of SARS-CoV-2 Antibodies Among Unvaccinated US Adults by History of COVID-19
As of December 28, 2021, approximately 27% of the US population was unvaccinated against SARS-CoV-2,1 yet the prevalence of natural immunity remains unknown. Blood donor studies may have selection bias and lack clinical information.2 Previous COVID-19 infection is a possible surrogate for natural immunity, but 1 study suggested that 36% of COVID-recovered individuals are serologic… Continue reading Prevalence and Durability of SARS-CoV-2 Antibodies Among Unvaccinated US Adults by History of COVID-19
2 Medical News 