Two elderly South Korean coronavirus patients recovered from severe pneumonia after being treated with plasma from survivors, researchers said, offering hope in the face of the global pandemic. Scientists have pointed to the potential benefits of plasma - a blood fluid - from recovered individuals who have developed antibodies to the virus enabling the body's defenses to attack it. Since emerging in China in December, the coronavirus has killed almost 75,000 people as drugmakers worldwide race to develop a vaccine and treatments for the disease.
