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Articles on Vaccines

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Without a vaccine, getting to herd immunity would mean many more illnesses and deaths. Andreus K via Getty Images

Herd immunity won’t solve America’s COVID-19 problem

Without a vaccine, the cost of reaching herd immunity during a pandemic is counted in lives lost, and it won’t quickly stop the virus’s spread.
View of blood collection tubes in a rack on the first day of a free COVID-19 antibody testing event at the Volusia County Fairgrounds, in DeLand, Florida. Paul Hennessy / Echoes WIre/Barcroft Media via Getty Images

Why COVID-19 immunity passports may violate US law

Amazon and General Motors are among companies exploring ways to test employees for COVID-19 infection, but these measures may be against the law.
Moderna just released the results of a phase 1 trial for a COVID-19 vaccine. JOSEPH PREZIOSO/AFP via Getty Images

What the phase 1 trials of the first COVID-19 vaccine really mean

Results from phase 1 trials of a COVID-19 mRNA vaccine created a burst of optimism. But details the company failed to release suggest it is too early to speculate whether the vaccine is effective.
Emergency rooms across the country have seen sharp drops in the number of patients seeking care for problems other than COVID-19. AAron Ontiveroz/MediaNews Group/The Denver Post via Getty Images

‘I thought I could wait this out’: Fearing coronavirus, patients delayed hospital visits, putting health and lives at risk

Delaying medical care comes at a cost, both human and financial. The patients some emergency rooms have been seeing are a lot sicker and more likely to need hospitalization.
Brazilian scientist working on a vaccine at the Immunology laboratory of the Heart Institute (Incor) of the Faculty of Medicine of the University of Sao Paulo. Sebastiao Moreira/EPA

Coronavirus vaccine: reasons to be optimistic

We don’t have vaccines for the Sars, Mers or the common cold. But that doesn’t mean scientists won’t crack it this time.

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