immunity News and Research

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SARS-Cov-2 reinfection in Syrian hamsters does not result in disease

Researchers have been investigating the reinfection of different SARS-CoV-2 variants in Syrian hamsters and found that this does not seem to result in disease or any significant pulmonary pathology.

23 Feb 2022

More evidence vaccines prevent ICU admission and mortality from SARS-CoV-2

In a recent study posted to the medRxiv* preprint server, researchers estimated the comparative virulence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) between the vaccinated and unvaccinated subjects hospitalized with coronavirus disease 2019 (COVID-19) in Canada.

23 Feb 2022

SARS-CoV 2 Omicron prevalent in vaccine breakthrough cases in Bahia, Brazil

In a recent study posted to the medRxiv* pre-print server, researchers performed genomic monitoring to estimate the magnitude and range of the different severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants of concern (VOCs) in SARS-CoV-2 reinfection cases among fully vaccinated individuals in Salvador, Bahia, Brazil.

23 Feb 2022

Labor neuraxial analgesia associated with reduced risk of severe maternal morbidity

In a study of vaginal births in New York State hospitals, labor neuraxial analgesia – having an epidural or combined spinal and epidural-; was associated with a decreased risk of severe maternal morbidity.

22 Feb 2022

Pre-existing B-cell immunity against SARS-CoV-2 not detected in pre-pandemic samples

A recent study investigates samples solated from unexposed individuals pre-pandemic to determine the presence of pre-existing SARS-CoV-2 B-cell immunity.

22 Feb 2022

Role of SARS-CoV-2 seroprevalence studies in disease surveillance

A new study aimed to determine the timelessness of SARS-CoV-2 seroprevalence studies in providing information that is useful in public health surveillance.

22 Feb 2022

Exploring the potential of mosaic RBD nanoparticles to fight SARS-CoV-2

Researchers explore the potential of mosaic receptor-binding domain nanoparticles in protective immunity against SARS-CoV-2

22 Feb 2022

Severity of SARS-CoV-2 infections with Omicron BA.2 variant relative to the BA.1 variant in South Africa

Researchers estimated the clinical severity of the SARS-CoV-2 Omicron BA.2 sublineage relative to the BA.1 variant in South Africa.

22 Feb 2022

SARS-CoV-2 reinfection risk in the population of the Abruzzo Region of Italy

Researchers evaluated the incidences of SARS-CoV-2 reinfections, hospitalizations, and death among the previously infected population of the Abruzzo region in Italy.

22 Feb 2022

Lung microbiome alterations and secondary-infections in lethal COVID-19

Researchers examined how an interplay of host and microbial factors weakened immunity leading to secondary infections in COVID-19-infected individuals.

22 Feb 2022

Study suggests anti-SARS-CoV-2 antibodies may persist lifelong post-infection

Researchers attempted to delineate the duration and stability of anti-SARS-CoV-2 antibodies in patients who had recovered from the COVID-19 infection.

22 Feb 2022

SARS-CoV-2 occurrence compared with other respiratory viruses in children with acute respiratory infections

The current study examined the incidence of COVID-19 in children with ARI relative to other respiratory viruses during the second and third waves.

22 Feb 2022

New radio-labeled molecule may allow a non-invasive approach to monitor inflammation in real time

Researchers at The University of Texas MD Anderson Cancer Center have developed a new radio-labeled molecule capable of selectively reacting with certain high-energy radicals that are characteristic of innate immune activity, which may allow a non-invasive approach to monitor inflammation in real time by positron emission tomography (PET) imaging.

21 Feb 2022