Delaware
15 Del. C. § 5503
There is not an emergency statute, but a voter can request an absentee ballot until noon the day before the election.

Here is how COVID-19 is affecting Patient Voting in this state:

​

According to an order from the Governor dated 3/24/20:

Per the provisions of the sixth modification of the current State of Emergency, voters are permitted to vote by absentee for the reason: "(#3) I am sick, or temporarily or permanently physically disabled" if they are: "...asymptomatic of COVID-19 infection and otherwise abiding by CDC and DPH guidelines by exercising self-quarantine or social distancing to avoid potential exposure to (and community spread of) COVID-19, and who herself or himself freely chooses to use such qualification to vote by absentee ballot."