If you don’t take proper precautions, you can get infected with New Crown again. New coronavirus is a highly contagious disease, even if the new coronavirus has been cured after treatment, if no proper prevention work is done, it is still possible to be re-infected. If the patient has not been cured, in the case of the same strain, basically will not be re-infected; but if encountered different strains, do not rule out the possibility of double infection. It is recommended to actively do related preventive work, try not to go to densely populated places; when going out, always wear a mask correctly; when going home, you need to pay attention to disinfection. In addition, the new coronavirus infection may be more harmful, so once diagnosed need to be actively treated.