The ex-husband sent a short message on how to reply.

My ex-husband sent a short message about the epidemic, and he should reply: Thank you for your concern about the epidemic. Thank you very much. I'm fine. Please pay attention to your health and safety, do a good job in epidemic prevention, wash water frequently and disinfect, wear masks when going in and out, go to crowded places as little as possible, and prepare more grain, oil and daily necessities at home. Be modest when you want to reply.