In a shocking incident, a woman died after being infected by the two most contagious variants of COVID-19. Read here to know the symptoms of co-infection.
When coronavirus mutates, it brings new variants and causes changes in spike protein. This occurrence can potentially make Covid vaccines ineffective.
In a shocking incident, a woman died after being infected by the two most contagious variants of COVID-19. Read here to know the symptoms of co-infection.
When coronavirus mutates, it brings new variants and causes changes in spike protein. This occurrence can potentially make Covid vaccines ineffective.
