At the Salon of 1804, Gros debuted his painting Bonaparte Visiting the Plague Victims of Jaffa. The painting launched his career as a successful painter. It depicts Bonaparte in Jaffa visiting soldiers infected with the bubonic plague. He is portrayed reaching out to one of the sick, unfazed by the illness. According to P. Jill Morse, Napoleon commissioned Gros to paint the scene to neutralize British propaganda. The propaganda focused on two episodes of the Egyptian campaign (1798-1800). First when he ordered the massacre of Turkish prisoners. Second, when he ordered the death by poison of French soldiers suffering from the plague. The painting showed a compassionate Napoleon visiting the sick at the plague hospital. Morse adds that Gros was probably using the disease as a metaphor for the vanity of Napoleon and his First Empire.[12]

While Bonaparte did actually visit the pesthouse, later, as his army prepared to withdraw from Syria, he ordered the poisoning (with laudanum) of about fifty of his plague-infected men.[13]

https://en.wikipedia.org/wiki/Antoine-Jean_Gros#Salon_of_1804

Further reading: https://en.wikipedia.org/wiki/Bonaparte_Visiting_the_Plague_Victims_of_Jaffa