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Prior SARS-CoV-2 infection and risk of breakthrough infection following mRNA vaccination

The study, recently published in The Journal of the American Medical Association, deduced that previous SARS-CoV-2 infection is associated with a statistically significant reduced hazard of breakthrough infection among recipients of both the BNT162b2 (Pfizer-BioNTech) and the mRNA-1273 (Moderna) vaccines.

3 Nov 2021

New genetic epidemiology tool provides detailed information about viruses, coinfections

With mask wearing and social distancing on the decline and the cold and flu season upon us, researchers have developed a viral panel that enables the simultaneous testing for SARS-CoV-2 along with numerous common respiratory viruses, that tells us whether other viruses also are at play in patients hard hit by COVID.

1 Nov 2021

Curcumin, a bioactive component of turmeric, effectively neutralizes SARS-CoV-2 in vitro

The researchers investigated the neutralizing activity of turmeric root extract, curcumin-containing capsules, and pure curcumin against SARS-CoV-2.

1 Nov 2021

SARS-CoV-2 introduction events in Québec, Canada

Researchers from McGill University have been investigating the number of introduction events in Quebec.

1 Nov 2021

COVID-19 patients' eyes and tears can be infected with SARS-CoV-2

A new study investigates the presence of SARS-CoV-2 in tears and eye secretions and describes the ocular symptoms in patients with COVID-19.

31 Oct 2021

Breakthrough COVID infections in Northeast Italy showing waning vaccine protection

Researchers analyze an outbreak of breakthrough infections in a small nursing home in Northerneastern Italy.

28 Oct 2021

Routine surveillance helps detect asymptomatic SARS-CoV-2 vaccine breakthrough infections

In a study published in Annals of Internal Medicine, researchers from Italy systematically monitored 2,397 HCWs who were fully vaccinated with BNT162 at the ASST Settelaghi hospitals in Lombardy, Italy during February 2021. HCWs who worked in 8 wards deemed at “high risk” for infection from attending patients had to undergo mandatory nasopharyngeal swab testing with SARS-CoV-2 polymerase chain reaction every two weeks. HCWs working in 8 “moderate-risk” wards were tested every four weeks.

28 Oct 2021

Study shows efficacy of a heterologous vaccine regimen to induce mucosal protection against COVID-19

Researchers emphasize that an effective vaccine should induce mucosal immunity and prevent the nasal entry of SARS-CoV-2.

27 Oct 2021

SARS-CoV-2 detection with natural spring water gargle instead of nasopharyngeal swabs

A team of researchers validated the use of spring water gargle as an alternative to ONPS for the detection of SARS-CoV-2.

26 Oct 2021

SARS-CoV-2 anti-nucleocapsid antibodies reduce risk of reinfection for at least eight months

A new study concludes that at least with predominantly wild-type variants, the risk of reinfection with the virus among unvaccinated people is reduced by 80% or more.

22 Oct 2021

Influence of age on innate and adaptive immunity in COVID-19 patients

A new study investigates how age influences SARS-CoV-2 replication, innate and adaptive immune responses.

21 Oct 2021

Children show lower seroconversion rates than adults with mild COVID-19

A new study finds that following mild COVID-19, children are more likely to remain seronegative than adults, irrespective of the viral load or symptom severity.

20 Oct 2021

Regular testing of SARS-CoV-2 positive vaccinated HCWs may reduce need for long quarantines

A new study published in the journal Annals of Internal Medicine conducted systematic surveillance involving 2,397 HCWs who were fully vaccinated with the Pfizer-BioNTech BNT162 vaccine at the ASST Settelaghi hospitals, Italy, in February 2021.

19 Oct 2021

Phase 2 study shows safety and immunogenicity of SARS-CoV-2 recombinant protein vaccine

The results of a phase 2 clinical trial featuring a SARS-CoV-2 recombinant protein vaccine developed by GlaxoSmithKline are reported, demonstrating a favorable immune response amongst both naïve and non-naïve adults with an acceptable safety profile.

15 Oct 2021

Study detects the presence of SARS-CoV-2 in semen along with low sperm count

A new study reported findings of semen analysis from a prospective COVID-19 cohort study.

15 Oct 2021

Methods used to limit transmission of SARS-CoV-2 effective against other viruses in China

Researchers from Shenzhen's Children's Hospital have been investigating the occurrence of these diseases while these measures were in effect to understand better how to curb their transmission.

14 Oct 2021

Study shows an association between initial SARS-CoV-2 viral load and disease severity

Researchers investigated the utility of initial SARS-CoV-2 viral loads of tests performed at a Public Health testing facility regarding hospital and ICUs admissions and overall survival.

8 Oct 2021

SARS-CoV-2 evolution promoted by long-term infection in patient with B cell depletion

A new study published on the medRxiv* preprint server focused on a patient with a persistent symptomatic viral infection for over a year. Researchers amplified sub-genomic transcripts for the E gene (sgE) using nasopharyngeal samples of the patient infected with SARS-CoV-2 over the course of 335 days.

6 Oct 2021

Chinese and Laotian Americans more likely to be diagnosed with nasopharyngeal cancer

Chinese Americans and Laotian Americans were over 10 and 14 times more likely to be diagnosed with nasopharyngeal cancer, respectively, than non-Hispanic white Americans, with incidence rates surpassing other Asian American subgroups, according to results presented at the virtual 14th AACR Conference on the Science of Cancer Health Disparities in Racial/Ethnic Minorities and the Medically Underserved, held October 6-8, 2021.

6 Oct 2021

Rapid molecular assay to detect SARS-CoV-2-specific RNA sequences

The study reported rapid detection of SARS-CoV-2 with high sensitivity and specificity in clinical samples.

6 Oct 2021

Nasopharyngeal News and Research

Prior SARS-CoV-2 infection and risk of breakthrough infection following mRNA vaccination

New genetic epidemiology tool provides detailed information about viruses, coinfections

Curcumin, a bioactive component of turmeric, effectively neutralizes SARS-CoV-2 in vitro

SARS-CoV-2 introduction events in Québec, Canada

COVID-19 patients' eyes and tears can be infected with SARS-CoV-2

Breakthrough COVID infections in Northeast Italy showing waning vaccine protection

Routine surveillance helps detect asymptomatic SARS-CoV-2 vaccine breakthrough infections

Study shows efficacy of a heterologous vaccine regimen to induce mucosal protection against COVID-19

SARS-CoV-2 detection with natural spring water gargle instead of nasopharyngeal swabs

SARS-CoV-2 anti-nucleocapsid antibodies reduce risk of reinfection for at least eight months

Influence of age on innate and adaptive immunity in COVID-19 patients

Children show lower seroconversion rates than adults with mild COVID-19

Regular testing of SARS-CoV-2 positive vaccinated HCWs may reduce need for long quarantines

Phase 2 study shows safety and immunogenicity of SARS-CoV-2 recombinant protein vaccine

Study detects the presence of SARS-CoV-2 in semen along with low sperm count

Methods used to limit transmission of SARS-CoV-2 effective against other viruses in China

Study shows an association between initial SARS-CoV-2 viral load and disease severity

SARS-CoV-2 evolution promoted by long-term infection in patient with B cell depletion

Chinese and Laotian Americans more likely to be diagnosed with nasopharyngeal cancer

Rapid molecular assay to detect SARS-CoV-2-specific RNA sequences

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