a year that has largely been full bad and tragic news because COVID-19, there is finally some good news. Scientists have announced a breakthrough the fight against the virus. The scientists are the U.S. drug company Pfizer and the German pharmaceutical company BioNTech. Their researchers say they have developed a vaccine that has a 90 per cent success rate protecting COVID-19. The researchers also say the vaccine does not cause serious side effects. Dr. Anthony Fauci, head the USA's National Institute of Allergy and Infectious Diseases, said the vaccine was positive news. He said: "The results are really quite good, I mean extraordinary."
Health experts say it will be months before the vaccine is widely available people to take. It needs to be stored temperatures of -80º Celsius. However, Pfizer CEO Dr. Albert Bourla was upbeat about his company's achievement. He said: "Today is a great day science and humanity....We are reaching this critical milestone our vaccine development program a time when the world needs it most." He added: "Infection rates are setting new records, hospitals are nearing -capacity and economies are struggling to reopen. With today's news, we are a significant step closer to providing people the world with a much-needed breakthrough to help bring an end to this global health crisis."