Background: In the summer of 2019 an outbreak of Nosocomial infections in a newborn nursery occurred in a Shunde hospital near Foshan, resulting in five babies deaths. Echovirus-11 was proven to be the responsible agent. Echovirus-11 infections are a significant health threat in the hospitals and occasionally cause severe neurological complications and even death in children. Although good hand hygiene is important for controlling infection, relevant data regarding the efficacy of widely used hand disinfectants against Echovirus-11 are still lacking.
Aim: To investigate the virucidal activity of widely used hand disinfectants against Echovirus-11.
Methods: The 13 widely used hand disinfectants from Guangdong hospitals were tested for virucidal activity against Echovirus-11 with the identification test of residual disinfectants removal and the suspension test with a 60 s exposure time based on Technical Standard For Disinfection (2002).
Findings: Both Disinfectant A and Disinfectant C achieved a mean log10 reduction factor in Echovirus-11 titre of ≥ 5.00, respectively, within 60 s. Disinfectant B, Disinfectant D, Disinfectant H and Disinfectant M had an effect on Echovirus-11 in a mean log10 reduction factor of ≥ 4.00.By contrast, Disinfectant E, Disinfectant F, Disinfectant G, Disinfectant I, Disinfectant J, Disinfectant K and Disinfectant L didn't improved the mean log10 reduction factor in Echovirus-11 titre with producing a factor of ＜4 after a 60 s exposure time.
Conclusions: 46.2% (6/13 products) of widely used hand disinfectants have effectiveness against Echovirus-11. In general, it is risky to rely too much on hand disinfectants. In case of epidemic season or definite enterovirus contamination, washing hands with soap and water is recommended for reducing viral contamination of enterovirus 11 in clinical practice, rather than hand hygiene with alcohol-based hand disinfectants alone.