No! It’s not possible for someone who has already had COVID-19 to get infected again after being cured from this illness.. You cannot catch COVID-19 twice because there is no live virus that could give rise once more infection by different strain or even by identical strain like influenza virus because there are too many difference between influenza virus strains including protein structure differences which may give rise for new strains like COVID-19 each year unlike influenza virus which still have only one flu virus strain every year hence there will never be same strain as previously seen before as far as we know.. So no need worrying about having COVID-19 twice as this cannot happen.. Even if some cases report having got sick after recovering from previous case but they are not likely because they did not get any chance to come back into contact with another person who already got infected.. This means there is no possibility or chances that someone who recovered from any previous case can get sick again..