Scientists have, for instance, been unable to develop a successful HIV vaccine, despite 40 years of research.
Professor Pyrć said: “Coronaviruses are a big family of viruses, much more diverse than animals for example.”
According to the WHO, the coronavirus attacks there respiratory system with flu-like symptoms and pneumonia.
The virus can trigger severe respiratory syndrome that can be lethal, particularly among the elderly and people with underlying medical conditions.
Other symptoms of COVOD-19 include coughing, breathing problems and fatigue.