The makers of Lysol and Dettol have urged people not to inject or drink disinfectants to treat coronavirus after President Donald Trump suggested researchers check if it can be as a treatment.
'Under no circumstance should our disinfectant products be administered into the human body (through injection, ingestion or any other route),' the company, Reckitt Benckiser, said.
'As with all products, our disinfectant and hygiene products should only be used as intended and in line with usage guidelines.'
The makers of Lysol and Dettol have urged people not to inject disinfectants to treat coronavirus after President Donald Trump suggested researchers check if it can be as a treatment
The warning from the manufacturer came just hours Trump made his comments during his daily White House coronavirus briefing.
Trump is now facing fierce backlash after suggesting it would be 'interesting to check' whether a disinfectant injection could help combat coronavirus.
He said researchers should try to apply their findings to coronavirus patients by inserting light or disinfectant into their bodies.
'Is there a way we can do something like that by injection, inside, or almost a cleaning?' he said. 'It would be interesting to check that.'
The Lysol manufacturer said due to recent speculation and social media activity, it had been asked whether internal usage of disinfectants may be appropriate for investigation or use as a treatment for coronavirus.
Trump is now facing fierce backlash after suggesting it would be 'interesting to check' whether a disinfectant injection could help combat coronavirus
It said that under no circumstances should their products be used consumed by a person.
In response to the Trump's comments, William Bryan of the Department of Homeland Security science and technology unit said health officials were not considering such treatment.
Trump's comments came following a briefing from Bryan, who delivered a report claiming that ultraviolet rays and heat have a potent impact on the pathogen.
The study also uncovered that bleach can destroy the virus in saliva within five minutes, while isopropyl alcohol took just a minute to kill it.
Despite offering hope that infections could wane with an increase in temperature towards the Summer, the study has not yet been made public and is still awaiting external evaluation.
Coronavirus dies in SUNLIGHT in just minutes, reveals 'striking' study by US Department of Homeland Security - and officials say transmission of the killer virus WILL decrease in summer
The new coronavirus is quickly destroyed by sunlight, according to new research announced by a senior US official last night, though the study has not yet been made public and awaits external evaluation.
William Bryan, science and technology advisor to the Department of Homeland Security secretary, told reporters at the White House that government scientists had found ultraviolet rays had a potent impact on the pathogen, offering hope that its spread may ease over the summer.
'Our most striking observation to date is the powerful effect that solar light appears to have on killing the virus, both surfaces and in the air,' he said.
'We've seen a similar effect with both temperature and humidity as well, where increasing the temperature and humidity or both is generally less favorable to the virus.'
A graphic on 'best practices' called for moving activities outside, and noted that heat and humidity hurt the virus. President Donald Trump listens to Bill Bryan, science and technology advisor to the Department of Homeland Security secretary
The original report was leaked last week (an excerpt of the paper is shown). It suggests the virus cannot survive in high temperatures and humidity
The DHS found that simulated sunlight 'rapidly killed the virus in aerosols,' while without that treatment, 'no significant loss of virus was detected in 60 minutes
The results suggests the coronavirus is most stable in lower humidity than compared to higher temperatures. However, the unpublished documents also state that the results have yet to be proven nor does this not mean the world will see a drop in new cases if they are
But the paper itself has not yet been released for review, making it difficult for independent experts to comment on how robust its methodology was.
It has long been known that ultraviolet light has a sterilizing effect, because the radiation damages the virus's genetic material and their ability to replicate.
A key question, however, will be what the intensity and wavelength of the UV light used in the experiment was and whether this accurately mimics natural light conditions in summer.
'It would be good to know how the test was done, and how the results were measured,' Benjamin Neuman, chair of biological sciences at Texas A&M University-Texarkana, told AFP.
'Not that it would be done badly, just that there are several different ways to count viruses, depending on what aspect you are interested in studying.'
Bryan shared a slide summarizing major findings of the experiment that was carried out at the National Biodefense Analysis and Countermeasures Center in Maryland.
It showed that the virus's half-life - the time taken for it to reduce to half its amount - was 18 hours when the temperature was 70 to 75 degrees Fahrenheit (21 to 24 degrees Celsius) with 20 percent humidity on a non-porous surface.
This includes things like door handles and stainless steel.
But the half-life dropped to six hours when humidity rose to 80 percent - and to just two minutes when sunlight was added to the equation.
When the virus was aerosolized - meaning suspended in the air - the half-life was one hour when the temperature was 70 to 75 degrees with 20 percent humidity.
In the presence of sunlight, this dropped to just one and a half minutes.
Bryan concluded that summer-like conditions 'will create an environment (where) transmission can be decreased.'
He added, though, that reduced spread did not mean the pathogen would be eliminated entirely and social distancing guidelines cannot be fully lifted.
'It would be irresponsible for us to say that we feel that the summer is just going to totally kill the virus and then if it's a free-for-all and that people ignore those guides,' he said.
Previous work has also agreed that the virus fares better in cold and dry weather than it does in hot and humid conditions, and the lower rate of spread in southern hemisphere countries where it is early fall and still warm bear this out.
Australia, for example, has had just under 7,000 confirmed cases and 77 deaths - well below many northern hemisphere nations.
The reasons are thought to include that respiratory droplets remain airborne for longer in colder weather, and that viruses degrade more quickly on hotter surfaces, because a protective layer of fat that envelops them dries out faster.
US health authorities believe that even if COVID-19 cases slow over summer, the rate of infection is likely to increase again in fall and winter, in line with other seasonal viruses like the flu.