Energy Dosage of Ultraviolet radiation (UV dose) in µWs/cm2 needed for kill factor

Irradiance is the power of exposure at the surface being disinfected. Irradiance is measured = µW-S/cm2 (micro-watt seconds) per square centimeter

Examples of a "Dose" (aka Kill Factor) for 99% elimination would have to deliver:
E. Coli - 6,600
Hepatitis - 8,000
Influenza - 6,600
Polio virus - 6,600
//

Robots deployed in hospitals(Medical Grade) are disinfecting the 400-600 Sq. Ft. rooms and deliver a very HI irradiance in a short amount of time (e.g. 20sec to 20min) and you can't be in the room during operation. (Interesting fact - UVC doesn't pass through glass - so if there is a window looking into the room there is no risk of exposure.) The consumer products we're discussing don't deliver anywhere near that level of irradiation.

Example of measuring a dose:
You have a light 8 In above a surface. The Irradiance (Strength) being delivered would be much lower at the surface vs @ 1 cm from the source.

So now that we measure the strength at the surface, how long does the light need to be on to kill pathogens from that distance

Examples of a "Dose" (aka Kill Factor) needed for 99% (1 Log) elimination needed:
E. Coli - 6,600 µW-S/cm2
Hepatitis - 8,000 µW-S/cm2
Influenza - 6,600 µW-S/cm2
Poliovirus - 6,600 µW-S/cm2

If the light measured .175 mW at the surface and left it on for 60 Sec it would deliver a kill factor of 10,500 µW-S/cm2 effectively eliminating all of the above //

we know the dosage values for comparable viruses in the same SARS virus family are 10-20 mJ/cm2 using direct UVC light at a wavelength of 254nm; this dosage will achieve 99.9% disinfection (i.e., inactivation) under controlled lab conditions. In real-life, the virus is often hidden or shaded from direct UVC light, reducing UVC’s effectiveness. To compensate, researchers are applying dosages of 1,000 - 3,000 mJ/cm2 to ensure 99.9% deactivation, the current CDC disinfection goal (see CDC’s recently published guidelines, online - https://www.cdc.gov/coronav...

The invisible light can kill viruses and pathogens like the one that causes COVID-19, but experts are raising alarms about the potential safety risks. //

"UL has made a conscious decision not to certify the consumer-facing, portable, handheld wand-type devices due to the inability to manage the risks," Straka tells CNET.

"What we would suggest is definitely looking at products that do have a safety certification from a nationally recognized testing laboratory, such as UL," Straka adds. "There are installers and commercial-grade products out there that do have a safety certification and which can be installed and used very safely."

Strictly speaking, children are not completely immune to infection, but they are ‘almost immune.’ Children are highly resistant to danger from COVID-19. //

“Total U.S. COVID cases” refers only to those who have tested positive for the virus. The word “case” is mentally associated with the word patient and implies that a case is someone who is sick. This is incorrect and a main reason for our national overreaction to the virus. To avoid the confusion and panic that 5 million “cases” generates, the number should be reported as “Total U.S. positive COVID-19 tests.”

Furthermore, the actual number of Americans infected with COVID-19 is certain to be much higher than 5 million, as only those with symptoms are typically tested. According to a small study of asymptomatic volunteers in Santa Clara County, Calif., the number of untested asymptomatic COVID infections could be 50 to 85 times greater than reported total cases. //

The term “COVID deaths,” currently at 166,090, is another misnomer. The majority of these deaths are people who died with the virus, not because of it. Most of those who died likely succumbed to their pre-existing life-threatening medical conditions such as diabetes, immune compromise, heart or kidney failure, and chronic lung disease. Often the deceased who also tested positive for COVID-19 had two or more of these conditions. //

the CDC reported 142,164 total deaths attributed to COVID-19. Forty-five of these deaths, 0.03 percent, were children. In other words, the likelihood that a child infected with COVID-19 will survive is so far 99.97 percent. //

Most vaccines currently available against other viral illnesses do not match the apparent natural resistance that children exhibit to COVID-19. The seasonal flu vaccine is usually 40-60 percent protective and the VPD-VAC Varicella (chicken pox) vaccination is effective in 82 percent of patients. Only the spectacular 99 percent protection achieved by polio vaccination approaches the 99.97 percent of childhood near-immunity to COVID-19. //

Deane Waldman, MD MBA, is Professor Emeritus of Pediatrics, Pathology and Decision Science

Sweden's medical experts are contradicting our own. Who to believe? //

Face masks can help, but they aren't a panacea

Democrats' argument gets blown apart... //

Here are these protesters coming out, in person, to argue why they need mail in voting in part because of the virus.

Pro tip, guys? When you are gathering in person to say why you can’t gather in person to vote, you tend to argue against your own point. //

Tony DeAngelo
@TonyDee07
These people are out already, why not vote in person while you’re out?? Protest are safe but voting for the most important elected position is not. 😂 😂 //

National Institute of Allergy and Infectious Diseases Director Dr. Anthony Fauci said this week there is “no reason” Americans can’t vote in person for the 2020 presidential election, so long as voters follow proper social distancing guidelines amid the coronavirus pandemic.

Covid-19 infection fatality rates (IFR) based on antibody studies. //

Half of all deaths were below, half were above the median age.

Sweden 86 years FOHM
Switzerland 84 years BAG
USA 79 years CDC //

In countries like the US, the UK, and also Sweden (without a lockdown), overall mortality since the beginning of the year is in the range of a strong influenza season; in countries like Germany, Austria and Switzerland, overall mortality is in the range of a mild influenza season. //

Even in states without a lockdown, the epidemic usually reached its peak within a few weeks of the outbreak. However, some reports showed cumulative deaths per day of report (left) instead of daily deaths per day of death (right), falsely implying an ever escalating situation. //

The United States is no exception to this dynamic. Rather, the US has seen several regional waves that were delayed due to lockdowns but then each peaked within a few weeks of the outbreak.

  Nicholas Ballasy over at Just The News is reporting that 10 members of the NIH panel responsible for setting the agency’s guidelines for treating COVID-19 are, in one way or another, pocketing a check from companies peddling COVID cures. 8 of the lucky buggers are being enriched by pharmaceutical giant Gilead Sciences, makers of the drug remdesivir.

Sweden has an intact economy, a citizenry with greater immunity to COVID-19, and a death rate per million lower than Italy's — all with no lockdown.

Short and sweet. //

Doug Ducey
@dougducey
"Come on man!" Get out of your basement, Joe, and get the facts on Arizona:

-Percent positivity between 9-11% for the first time since May
-The lowest R Naught in the nation at .86
-380+ testing sites, and growing
-And we're providing care and comfort to those who need it.

1/

Joe Biden
@JoeBiden
President Trump called Arizona “a model for applying a science-based approach to the decreasing cases and hospitalizations without implementing a punishing lockdown.” He said Governor Ducey’s approach should be used by other states—but here’s what’s really happening in Arizona:

Wait, hold up, hold up. //

Sean Davis
@seanmdav
The sudden U-turn from Cuomo and Schumer on school openings suggests the months-long Democrat position of banning children from going to school was a political disaster for them.

The Hill
@thehill
Sen. Chuck Schumer: "If we don't open up the schools, you're going to hurt the economy significantly."

Many lives would be saved and even more misery forestalled if people did start paying attention to some of the above. But since the media isn’t reporting them every day like they are meaningless scary-sounding factoids like how many days new cases have risen above some arbitrarily selected number, it’s unlikely very many will.

But it’s crucial that everyone at least starts paying attention to one unavoidable fact that’s daily thrust before our eyes: Those most insistent that there’s a killer virus lurking among us that we need to spend every waking hour fearing and desperately trying to keep at bay can’t possibly believe a word of the garbage they’re peddling to us themselves.

Can anyone seriously think they’d show more concern for our lives than their own?

Or that they’d be more insistent that Trump’s supporters stay safe from lethal infection than they are theirs? //

If Fauci, Cuomo, and the rest believed that the rules they’re insisting the rest of us follow really were necessary for our own safety, the last thing they’d be doing is risking their own lives by flagrantly violating them or suggesting that it’s okay for their cherished friends and supporters to do so while tolerating no breach from their political enemies.

They’re not being unfair or hypocritical.

They’re perpetuating the biggest and most deadly hoax in history on the American people and have already inflicted more damage than any terrorist or foreign enemy has ever managed.

I realized that for the entirety of the call I’d not heard one shred of medical or epidemiological evidence to justify a need for citizens to wear masks.

Lockdowns do not prevent infection in the future. They just don’t. It comes back, many times it comes back. The purpose of a lockdown is to buy time to build capacity, especially with respect to hospitals, learn more about the disease and develop effective treatments as we did in the United States. //

social distancing can’t decrease the number of infections. Nothing short of developing an effective vaccine can. //

For the virus to go away, enough of us have to become immune to deprive it of a sufficient number of carriers to reach the rest. Until that threshold for herd immunity is reached, the COVID-19 virus isn’t going away.

And neither lockdowns nor any other measures designed to slow down the rate at which it spreads do anything to lower its threshold for herd immunity. //

President Trump also corrected the false idea the media’s been despicably peddling that COVID-19 is a mortal threat to young and healthy Americans.

The average age of those who succumb to the virus is 78 years old. That’s the average age.

The median age of U.S. fatalities is even slightly higher at 80 years old. //

In fact, of the 10 countries where data on COVID-19’s median fatality age is available, there isn’t a single one in which it’s less than 80. In Sweden, whose leaders decided against locking down, the median fatality age is 86.

If we are going to follow the science, how about we actually do that? //

The negative impacts are obvious. Keeping your face cooped up in a damp piece of cloth all day is a breeding ground for bacteria. They also encourage far more touching of the face, which is a primary vector of the spread of coronavirus. Perhaps that’s why we’ve seen spikes mostly after masking became in vogue? Then there are the respiratory issues associated with masks. //

We always want to convince ourselves that we are in control and that if we just do “this thing,” then everything will be fine. Masks have become a security blanket that provide a false sense of invulnerability.

Two studies put a proven malaria drug back in the news as a possible therapeutic in fighting the coronavirus . //

A great deal of evidence says it doesn’t work, but enough evidence says hydroxychloroquine does work that it would be irresponsible to write it off completely at this time, especially in combination with other drugs. In fact, researchers around the world are conducting hundreds of trials with hydroxychloroquine. //

[Commenter ]
back in mid January why did France change the status of Hydroxychloroquin from over the counter to prescription?

It turns out their COVID numbers are incredibly good even independently of the fact that they seem to be avoiding the recent spike in cases that lockdown nations are experiencing.

Moreover, there are differences in the criteria for counting COVID-19 deaths which cast a very different light on some of the comparisons being made. //

Every time the government discovers that someone who had the virus has died, that person is registered as a COVID-19 death if it happened within 30 days of the diagnosis. //

Even in a culturally and geographically similar country like Norway—celebrated for its low death rate—they do things differently. The Norwegians only count something as a COVID-19 death if a doctor concludes that someone was killed by the disease and decides to report it to the country’s public health authority.

There’s a general lesson here. The data we’re getting is pretty much all garbage considered on its own and is worse than garbage when used for comparative purposes. //

The head of the Nowegian version of America’s CDC has made a startling admission:

“Our assessment now….is that we could possibly have achieved the same effects and avoided some of the unfortunate impacts by not locking down, but by instead keeping open but with infection control measures,”

People who resist COVID-19 restrictions are often accused of being selfish and caring only about their own freedom, but their concerns are deeper than that.

The very same people who were saying we’d have over 2 million fatalities if nothing was done are now claiming Trump failed miserably because the virus’s official death tally is around 15o,000.

But we know beyond a shadow of a doubt that number represents a flagrant lie which vastly overstates the real one.

And we need to learn by exactly how much.

What we care about is how many people would still be alive if not for contracting the virus.

What we’re getting is something else entirely. //

The question isn’t whether COVID-19’s fatality numbers are inflated. It’s by how much.

Sweden update 31 July. Zero deaths in past 3 days; 5 in the past week. No lockdowns, no masks, no panic.

We should follow Sweden's lead and stop hiding from something we can easily defeat. //

The number of new cases per 100,000 people in Sweden reported over the last 14 days since July 29 dropped by 54 percent from the figure reported over 14 days prior to then, according to the latest report Wednesday from the World Health Organization (WHO).

Meanwhile, other parts of Europe have reported large spikes in new cases over the same period, including Spain, France, Germany, Belgium and The Netherlands, which have seen increases between 40 and 200 percent over the last month, according to the latest WHO report Wednesday.

The seven-day rolling average of Sweden’s daily new cases has been dropping consistently since June 29. Its daily case count has been mostly decreasing since June 24, when it reported 1,803 new infections, its largest single-day spike since the outbreak began, according to data compiled by Worldometer.