Mask, social distancing will be crucial even after Covid-19 vaccine: Scientist


https://m.hindustantimes.com/india-news/mask-social-distancing-will-be-crucial-even-after-covid-19-vaccine-scientist/story-RzEKADAQU4wNR4H10iWgUL.html

How Sperm ‘Swim’ May Be Nothing But an Optical Illusion


How Sperm ‘Swim’ May Be Nothing But an Optical Illusion https://gizmodo.com/how-sperm-swim-may-be-nothing-but-an-optical-illusion-1844571256?utm_campaign=Gizmodo&utm_content=&utm_medium=SocialMarketing&utm_source=facebook

The people with hidden immunity against Covid-19


https://www.bbc.com/future/article/20200716-the-people-with-hidden-protection-from-covid-19?ocid=twfut