A nasal spray derived from algae and a plant in the tobacco family could offer a preventive measure for COVID-19, according to a new study.
Researchers are making a molecule called Q-griffithsin using an anti-viral protein found in the New Zealand red algae Griffithsia and Nicotiana benthamiana, a plant in the same family as tobacco plants. The former has shown it can bind to other coronaviruses’ surfaces, making it unable to infect healthy cells.