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COVID & Company

An updated directory of COVID and other viral/infectious disease links from the most trusted medical websites and publications in the world.


Health System Warns Exemptions to COVID Vaccines May Expire With New Options (MedPage Today)
Because the Novavax COVID vaccine is protein based rather than MRNA based, religious exemptions to vaccination is going away at at least some centers.


Effectiveness of a Fourth Dose of COVID-19 mRNA Vaccine Against Omicron Variant Among Elderly People in Singapore (Annals of Internal Medicine)
40,000 persons who received a 4th dose of vaccine were matched to the same number of non-receivers. The result: 4 doses significantly reduced the incidence of symptomatic disease, hospitalization, and severe disease compared with 3 doses.


Prevention of COVID-19 and Other Acute Respiratory Infections with Cod Liver Oil Supplementation, a Low-Dose Vitamin D Supplement: Quadruple Blinded, Randomised Placebo Controlled Trial (BMJ)
With 6 months of the dietary supplement during the winter season, COVID and other respiratory infection rates were as just as high in the supplemented group as in the placebo group.


Effect of a Test-and-Treat Approach to Vitamin D Supplementation on Risk of All-Cause Acute Respiratory Tract Infection and COVID-19: Phase 3 Randomised Controlled Trial (CORONAVIT) (BMJ)
Of more than 3,000 individuals, more than 85% had low vitamin D levels. Those individuals were given either high- or low-dose vitamin D supplementation. Neither level of supplementation yielded a reduction in COVID and other respiratory infection compared with a control population.


New COVID-19 Boosters Authorized and Recommended (ACP Internist)
The CDC has recommended the new formulations of the mRNA vaccines, targeted at the BA.4 and BA.5 lineages of the omicron variant, for adults and adolescents who last received a COVID-19 shot at least two months ago.


Will Omicron-Specific Booster Shots Be Effective at Combating COVID-19? 5 Questions Answered (MDLinx)
The updated boosters contain two messenger RNA (mRNA) components of the SARS-CoV-2 virus to provide better protection against the omicron variant. Based on the data, the updated boosters are expected to provide increased protection against the omicron variant and side effects are expected to be similar to those commonly reported with current vaccines.