CHP closely monitors case of pneumonia of undetermined etiology that resulted in death in Russia
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After noticing media reports of the above-mentioned death case in Russia in early October, the CHP immediately and proactively sought further information from the WHO and the Russian health authorities. According to the latest information from the WHO, citing data provided by Russian authorities, no case of plague had been recorded recently in Irkutsk Oblast, the laboratory testing of the deceased's contacts detected no high-threat pathogens, and that there were no further cases of severe pneumonia linked to this case. The Russian authorities reported that no biosecurity incidents had occurred in the laboratory, and quarantine measures were instituted in the hospital where the patient was being treated. According to the WHO's assessment, no evidence of ongoing transmission associated with this event has been identified so far. Nevertheless, a key uncertainty remains the absence of a confirmed diagnosis in the deceased laboratory worker. The WHO will continue to monitor the situation and assess any potential public health implications as further information becomes available.
In recent months, the CHP has not received any reports of residents or travellers arriving in Hong Kong from Russia with cases of pneumonia of undetermined etiology. Based on current information, there is no evidence indicating ongoing transmission. The CHP assesses that the immediate public health impact to Hong Kong is low. For the sake of prudence, the CHP has implemented a series of control and prevention measures to guard against imported cases, including:
(i) strengthening health surveillance for passengers arriving on relevant flights from Russia at the airport, including arranging for Port Health Division officers to conduct temperature checks at the relevant flight gates, and conducting health assessments for passengers exhibiting symptoms;
(ii) displaying signages and broadcasting announcements in the airport arrival area and through airlines to urge passengers who have visited Irkutsk Oblast of Siberia, Russia, within the past 14 days to proactively declare their travel history to the on-site staff of the DH for further health assessment;
(iii) if an inbound traveller exhibits symptoms of pneumonia, after assessment by Port Health Division officers, arrangements will be made immediately to transfer the individual to a public hospital for further testing; and
(iv) providing the Airport Authority Hong Kong and airlines with the latest information regarding the case in Russia, and urging airlines to remind their flight crews to strictly enforce established prevention and control measures if they identify suspected cases on their flights.
Through existing mechanisms, Hong Kong has the capacity to detect cases of unexplained infections and emerging infectious diseases at boundary control points and in hospitals.
In addition, the CHP will send letters to all doctors and hospitals in Hong Kong, reminding them to remain highly vigilant and to strengthen surveillance. Any patient who has visited Irkutsk Oblast of Siberia, Russia, within 14 days prior to the onset of symptoms and has developed pneumonia of undetermined etiology must immediately report to the CHP so that further testing can be arranged.
The CHP reminds travellers that if they develop respiratory symptoms after returning to Hong Kong, they should wear a face mask, seek medical attention and report their travel history to a doctor. The CHP will continue to maintain close liaison with the WHO and other relevant health authorities, closely monitor developments, and adjust disease prevention strategies as necessary to safeguard public health.
Ends/Monday, October 12, 2026
Issued at HKT 16:25
Issued at HKT 16:25
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