In the event of a calamity or epidemic, the remedy is to repent to Allah Ta’ala and humble oneself before Him and beseech Him, and to right any wrongs that have been done, and also to seek forgiveness a great deal, glorify Allah a great deal, send blessings upon the Prophet (Sallallahu Alayhi Wasallam), ask Allah for well-being, and take measures to protect oneself and treat sickness, such as quarantine, and vaccinations and medical treatment if they are available.