You are not required to convert from a red and white health card to a photo health card at this time. Health cards have an extended expiry date until further notice. The provincial government will notify when you need to renew.
As of March 19, 2020, the province of Ontario is waiving the three-month waiting period for OHIP coverage. If you do not meet the criteria for OHIP coverage and are uninsured, the province will fund the cost of COVID-19 services.