Sulfur is a trace element in the human body (0.4% per table below). Suppose the average weight of a Chinese person is 140 pounds. Then each body contains 0.42 pounds of sulfur. That's 101 pounds of sulfur per day from the normal mortality rate of 241 dead bodies per day.
If they are burning an extra 100 bodies per day in Wuhan because of the virus, then they are emitting a total of 143 pounds of sulfur per day.
I really doubt that is enough to change the atmospheric sulfur pollution in the area.
| Element | Symbol | % in body |
| Oxygen | O | 65 |
| Carbon | C | 18.5 |
| Hydrogen | H | 9.5 |
| Nitrogen | N | 3.2 |
| Calcium | Ca | 1.5 |
| Phosphorus | P | 1 |
| Potassium | K | 0.4 |
| Sulfur | S | 0.3 |
| Sodium | Na | 0.2 |
| Chlorine | Cl | 0.2 |
| Magnesium | Mg | 0.2 |
| Others | < 1.0 |