The humoral response after the fourth dose of a mRNA vaccine against COVID-19 has not been adequately described in elderly recipients, particularly those not exposed previously to SARS-CoV-2. Serum anti-RBD IgG levels (Abbott SARS-CoV-2 IgG II Quant
Under increasing anthropogenic pressure, species with a previously contiguous distribution across their ranges have been reduced to small fragmented populations. The critically endangered Yangtze finless porpoise ( Neophocaena asiaeorientalis
CONCLUSION: The study identified only 0.33% of events as serious, and 99.67% of the study population recovered from the AEFIs, which reveals that COVISHIELD™ and COVAXIN^(®) have a generally favourable safety profile. However, close monitoring is
CONCLUSIONS: Based on our analysis of French tweets, associations between COVID-19 and anosmia-ageusia by web users could have been found on Twitter just a few days before the official announcement but not during the early stage of the pandemic
Angiotensin-converting enzyme II (ACE2) is a monocarboxypeptidase expressed throughout multiple tissues and its catalysis of bioactive peptides regulates the renin-angiotensin system mediating blood pressure homeostasis. ACE2 is implicated in a
We investigated the impact of the fourth dose with ChAdOx1 nCoV-19 (AstraZeneca) in the humoral immune response to SARS-CoV-2 during a 9-month follow-up period in which Omicron was the predominant variant in Brazil. IgG for the SARS-CoV-2 spike
The worldwide effort to develop a vaccine against SARS-CoV-2 has led to a revolution in vaccinology by introducing a completely new class of vaccines messenger RNA (mRNA) vaccine. The mRNA-based vaccine is a singular molecule made in the lab that