Hold on to your butts.

Tuoi Tre reports that the Ho Chi Minh City Department of Health has announced a new COVID-19 case in the city. The 23 year-old man was tested for the coronavirus on Sunday, and his result came back positive the same day.

He is reportedly suffering from nasal congestion and coughing, and has been moved to the Cu Chi Field Hospital for treatment.

The man in question traveled overland to Vietnam from Myanmar with Patient 1,440, who tested positive for COVID-19 on Saturday. They illegally entered the country on December 24 through An Giang Province.

Patient 1,440 then traveled to Saigon on a truck, before taking a bus to Vinh Long Province, where he lives. His mother reported him to local authorities, and he was taken to quarantine and tested for the coronavirus.

At the time of writing, Patient 1,441's travel history since entering Vietnam last week is unclear, but his apartment building on Su Van Hanh Street in District 5 has been blocked. He had been taken to a nearby quarantine facility after his link to Patient 1,440 was discovered.

VnExpress reports that 72 apartments in total have been isolated, with residents advised against going out and hundreds of police officers dispatched to the area. The news source adds that the Ministry of Health has not yet added this individual to the national COVID-19 total.

Contact tracing related to both cases is now underway, and further updates from health officials can be expected. It is not known when either man contracted the virus, as they traveled through three countries before reaching Vietnam.

This comes a few weeks after a small COVID-19 flare-up in Saigon linked to a Vietnam Airlines flight attendant broke an extended period without any known community transmission of the virus in Vietnam.

[Top photo via Khoa Hoc Doi Song]