There are many sound hadiths which urge the Muslim to recite du`as for good health and protection from harms and ills such as “Allahumma inni a ‘udhu bika min al-barasi wa’l-jununi wa’l-judhami wa min sayyi’il-asqam.”

Conclusion: If you are leaving this land in order to go back to work, it is permissible according to scholarly consensus, because the aim thereof is not to flee from the epidemic; rather it is travel that is was already planned and intended for the sake of work. And Allah knows best.