Limiting the size of gatherings helps reduce the potential for exposure. Controlling indoor environments in other ways can also be a highly effective strategy for reducing risk. This includes increasing ventilation rates to bring in fresh air and filtering existing air to dilute aerosol concentrations.
Experts say that despite 95% efficacy of the COVID-19 vaccines, approximately 5% of people receiving the vaccination may still become infected.
The Oxford vaccine, based on a viral vector, is also cheaper (around US$4) than Pfizer and Moderna’s mRNA vaccines – around US$20 and $33, respectively. AstraZeneca has made a “no profit pledge”.
The crisis is unlikely to put a stop to globalization: rather, coronavirus is the starting point for a reconfiguration of the global system.
One big lesson that we all should draw from the covid19 crisis – as witnessed in USA, Brazil, Russia, India and Pakistan, is that pandemics know now borders and that they require trans-border cooperation instead of finger-pointing. Political rhetoric in one country will never be able to stop adverse winds – calamity, pandemic – from outside. Cooperation can, nevertheless, help in prevention and protection.
For centuries, disease outbreaks have forced cities to transform physically and operationally in ways that ultimately benefited all residents going forward.
COVID19 has exposed the inner weaknesses and contradictions of the US like never before; It spends hundred of billions of dollars on lethal armaments but has not enough COVID19 testing kits, ventilators, and hospital beds, says Barnett Rubin.
After your body fights off an infection, antibodies remain in your blood. Two researchers explain how tests identify these antibodies and what the data can be used for.
Many people unused to wearing masks find it difficult to convey emotions or pick up on social cues. But niqab-wearing women know that face coverings don’t prevent effective communication.
An exponential quantity is characterized by its starting value and its doubling time. By waiting until mid-March to act as a nation, the U.S. lost control over the starting value.