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Two new studies published in Blood suggest that the mRNA COVID-19 vaccine may have reduced efficacy in individuals with chronic lymphocytic leukemia (CLL) and multiple myeloma, two types of blood cancer. According to researchers, these studies could help inform the ideal time for vaccination of these populations.

What The Study Did: The fitted filtration efficiency of commonly available masks worn singly, doubled or in combinations was evaluated in this study.

SARS-CoV-2, the virus that causes COVID-19, does not infect brain cells but can inflict significant neurological damage, according to a new study of dozens of deceased patients.

A study led by UNC researchers shows that wearing two masks can significantly increase the effectiveness of preventing the spread of COVID-19, but is heavily dependent on how well they fit over a person's nose and mouth.

A person who owns a car or who has a college education may be less vulnerable to COVID-19, according to an analysis of cases in Tehran, Iran, one of the early epicenters of the pandemic. While such variables do not inherently lower a person's risk, they do indicate an infrastructure of protection that persists despite how densely populated a person's district might be.

Results suggest vaccination against COVID-19 remains crucial even in young adults who were previously infected.

A candidate vaccine that could provide protection against the COVID-19 virus and other coronaviruses has shown promising results in early animal testing.

A new study by Texas A&M University researchers published in PLOS ONE details a new model for making short-term projections of daily COVID-19 cases that is accurate, reliable and easily used by public health officials and other organizations.

New UCLA research suggests that elderly patients of female physicians are more likely than those of male physicians in the same outpatient practice to be vaccinated against the flu. This trend holds for all racial and ethnic groups studied and could provide insight into improving vaccination rates for influenza, COVID-19 and other illnesses.

While Black, Hispanic, Latino, Indigenous, Asian and Pacific Islander people are more likely to die of COVID-19 than white people nationwide, a recent study from Oregon State University found the risk was even greater for racial and ethnic minority groups living in rural areas compared with urban areas.