To diagnose and contain the spread of coronavirus, testing is critical. There are two types of Covid-19 tests — those that are designed to detect whether you have the infection now, or those crafted to check whether you have been previously infected by the virus — SARS-CoV-2 — that causes the disease. Like any other product these tests have varying degrees of accuracy and reliability, and can be used to achieve different aims.
From corals bunkering down in deeper waters to wait out climate change stress, to how vaccines can boost our immune system beyond a specific disease – here are the 20 most surprising scientific facts that we discovered this year.
The virus that causes Covid-19 hijacks human cells by exploiting a ‘doorway’ that is potentially also used by other deadly viruses such as HIV, dengue and Ebola, according to recent research that may help to explain why the coronavirus is so highly infectious to a wide range of organs in the body. Dr Yohei Yamauchi, a viral cell biologist at the University of Bristol, UK, who led the research, believes that the finding could not only lead to new drugs against Covid-19, but other anti-viral treatments that could be used to save patients’ lives in future pandemics.
The world’s first mRNA vaccine has begun its rollout after being produced at unprecedented speed as part of the global effort to end the Covid-19 pandemic. A second one is hot on its heels. The two – one made by Pfizer/BioNTech and the other by Moderna – mark the first time this vaccine technology has been approved for use.
Henk-Jan Guchelaar knows all too well the serious problems that the side-effects of medication can cause. As a professor of clinical pharmacy at the University of Leiden in the Netherlands, he has spent the last two decades trying to get the link between medicine and our genes recognised more widely.
Live vaccines can give health effects beyond just protecting us from a specific disease and may even help us combat other infections such as Covid-19, according to Christine Stabell Benn, a professor in global health at the University of Southern Denmark.
Efforts to achieve herd immunity against Covid-19 with a vaccine could be hampered by low levels of confidence in immunisation programs in some European countries, warns Professor Heidi Larson, director of the Vaccine Confidence Project and an anthropologist at the London School of Hygiene & Tropical Medicine, in the UK.
Picture this: You’ve experienced no physical sensation beyond your wrists for years, then a doctor drapes a thin, flexible membrane over your hand and, like magic, you can feel the trickle of water through your fingers again.
The ability of certain fish to heal damage to their hearts could lead to new treatments for patients who have suffered heart attacks and may also help to unravel how the lifestyle of our parents and grandparents can affect our own heart health.
Recent advances are bringing cancer vaccines much closer to reality, giving patients another weapon in their arsenal of cancer treatments, according to Dr Madiha Derouazi, CEO of Amal Therapeutics and one of three winners of the 2020 EU Prize for Women Innovators.
Horizon spoke to virologist Johan Neyts.
Dr Alexey Solodovnikov on why we need a less biased view of the animal kingdom.
Dr Kate Rychert studies ocean plate structures.