How Far Should a Coronavirus Test Go?Noah PisnerReporting on the coronavirusEllen LoWe built an augmented reality effect that shows you the interior of a nasal cavity, and how far each type of swab reaches, on your own head. To experience this effect, you’ll need the Instagram app.

I’m Vaccinated. When Should I Wear a Mask?Noah PisnerReporting on the coronavirusSo, why are Covid vaccines effective at preventing you from getting severely sick, but not as good at stopping transmission of the virus?The vaccines are injected deep into your arm where they prompt your immune system to produce T cells and powerful antibodies known as IgG.These antibodies and immune cells circulate through your body, recognizing infected cells. This can offer enough protection to keep you from becoming severely ill.