Hong Kong probes carbapenemase-producing bacteria cluster at elderly home
Hong Kong's health authorities are investigating a cluster of four residents at a care home who tested positive for carbapenemase-producing Enterobacteriaceae (CPE). The patients, aged 69 to 99, are asymptomatic and stable. Officials suspect transmission due to lapses in infection control at the fac
Hong Kong's Centre for Health Protection (CHP) is investigating a cluster of carbapenemase-producing Enterobacteriaceae (CPE) carriers linked to a care home in the southern district. The CHP received a notification from the Hospital Authority that four residents on the same floor of the home had tested positive for CPE during admission screening at public hospitals, where they were receiving treatment for underlying medical conditions.
The four patients, two men and two women aged 69 to 99, are all carriers showing no symptoms of CPE infection and are in stable condition. The CHP's epidemiological investigation suggests the source of infection may be two previously known CPE carriers on the same floor of the care home.
An inspection of the facility revealed that infection prevention and control measures had not been properly implemented. The CHP stated that the bacteria may have spread among residents via staff or contaminated environments and objects. Authorities have instructed staff to follow guidelines, including proper use and removal of personal protective equipment, enhanced hand hygiene for both workers and residents, and thorough cleaning and disinfection of the premises. The CHP also recommended cohorting carriers in a designated area.
The investigation continues, with screening at the home to identify any additional carriers. Medical surveillance of the facility will be maintained.
Enterobacteriaceae, such as Escherichia coli and Klebsiella, are common pathogens that can cause infections including urinary tract infections, intra-abdominal infections and bloodstream infections. CPE produce enzymes that render carbapenem and other beta-lactam antibiotics, such as penicillin, ineffective. These bacteria are often resistant to multiple antibiotics, limiting treatment options and potentially leading to severe, difficult-to-treat infections. Carriers may be asymptomatic, but the bacteria can cause serious or fatal infections depending on the site of infection and the patient's health status.
Proper antibiotic use and attention to personal and environmental hygiene, especially hand hygiene, are crucial to preventing the emergence and cross-transmission of multidrug-resistant bacteria such as CPE. Vulnerable groups, including the elderly, young children, the sick and pregnant women, should avoid eating raw or undercooked food to reduce the risk of infection.
