The move came after the World Health Organisation (WHO) on May 17 declared Ebola outbreaks linked to the Bundibugyo strain in the Democratic Republic of Congo and Uganda a Public Health Emergency of International Concern.
The HCM City Department of Health said local health authorities had strengthened monitoring measures at border gates to help detect suspected cases early and prevent the virus from spreading into the city.
At Tan Son Nhat International Airport, health officials are monitoring incoming passengers for unusual symptoms while reviewing travel and residency histories, particularly for travellers arriving from affected areas.
The HCM City Centre for Disease Control (HCDC) has been instructed to work with aviation, maritime and quarantine authorities to strengthen surveillance and prepare isolation procedures for suspected Ebola cases.
Health authorities said close contacts of confirmed Ebola patients should be monitored for 21 days and restrict international travel during the observation period, in line with WHO recommendations.
Hospitals and medical facilities in the city have also been asked to update infection-control procedures, ensure adequate protective equipment supplies and strengthen training for healthcare workers in handling suspected Ebola cases.
WHO has not recommended international travel or trade restrictions related to the outbreaks and does not advise large-scale airport entry screening outside directly affected regions.