Coronavirus Persistence


The Need for Altapure

Persistent Corona Viruses


The Coronavirus, SARS-CoV-2 (COVID-19) can be deposited on any surfaces in an enclosed space and with various Log concentrations.  Extreme care must be taken to fully decontaminate all surfaces in a room because viable pathogens can not only be spread by ejected particles from coughing and sneezing, and float and travel in the local area, but can also be easily moved from room to room in a hospital as demonstrated by Dr. Curtis Donskey (2016) (94).

Further, the research paper by Casanova et al. (2010)(91), showed that pathogenic enveloped corona viruses, such as SARS-CoV, or Covid-19, persisted for 5 to 28 days on stainless steel surfaces depending upon temperature, Log loading, and humidity.  In addition, it was reported by Moriarty et al. (2020)(92) and Yamagishi et al. (2020)(93), that the corona virus SARS-CoV-2 RNA was identified on a variety of surfaces in cabins of both symptomatic and asymptomatic infected passengers up to 17 days after cabins were vacated on the Diamond Princess but before disinfection procedures had been conducted.  Clearly, a need is present to completely eliminate dangerous pathogens, such as Corona viruses, that can persist for long periods of time on various room surfaces.

Urgent Warning: 

The United States Environmental Protection Agency (EPA) refuses to stop fraudulent products and enforce various product claims under the United States Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), and the surface disinfection market has found itself in a “wild west” situation which is jeopardizing human life and health. Please have your microbiological lab challenge all microbiological and viral product claims to EPA and AOAC test standards, for all products claiming large area disinfection, sterilization, or decontamination, of surfaces in a treated space (including distant surfaces that are not horizontal, under toilet seats, and around corners in adjacent rooms).


91)  Casanova et al., "Effects of Air Temperature and Relative Humidity on Coronavirus Survival on Surfaces", Applied and Environmental Microbiology, 2010 May; 76(9): 2712–2717,

92)  Moriarty et al., "Public Health Responses to COVID-19 Outbreaks on Cruise Ships — Worldwide, February–March 2020", Morbidity and Mortality Weekly Report (MMWR), March 26, 2020, 69(12);347-352,

93)  Yamagishi et al., Yamagishi, National Institute of Infectious Diseases, personal communication, 2020.

94)  Donskey, et al., “Evaluation of Hospital Floors as a Potential Source of Pathogen Dissemination Using a Nonpathogenic Virus as a Surrogate Marker”, Infection Control & Hospital Epidemiology, November 2016, Vol. 37, No.11.