Consequences for APOR 191

COVID CASES DROP TO 2; 44 RELEASED FROM QUARANTINE

After repeat swab RT-PCR tests, City Health Officer Dr. Maria Sarah B. Talla confirms that 5 COVID-19 patients tested negative and are deemed to have recovered.
Dr. Talla also informed Mayor Felipe Antonio Remollo, Chairperson of the City’s Inter-Agency Task Force on Emerging Infectious Diseases, that following their recoveries the number of active COVID-19 positive cases has now dropped to just 2.
The 4 new recoveries are members of the same family while the other is is a 27-year-old Male, who was exposed to a COVID-19 Positive case from San Carlos City.
Also today, 24 individuals are quarantined in the different isolation facilities as Persons Under Monitoring or PUMs.
In contrast, 44 PUMs completed today the 14-day quarantine without any medical incident, thus cleared to return to their families.
Of the 24 new PUMs: 5 are OFWs from Singapore, Saudi Arabia, Qatar, Panama and Japan; 17 Locally Stranded Individuals from Cebu City, Makati City, Manila, Pasig City, Dapitan City, Cavite and Siquijor and 2 Returning Overseas Filipinos from Norway and Mexico.
Meanwhile, of the current 245 PUMs: 150 are in designated hotel facilities, 38 are in the community isolation center, while 57are in barangay isolation centers.
None of the PUMs seen and examined by the City Health personnel has shown signs and symptoms of ILI.

 

From a March 21 post

..INACTIVATION OF THE COVID-19
CORONAVIRUS BY HEAT, HUMIDITY AND SUNLIGHT.
.
Covid-19 coronavirus consists of an RNA genome enclosed in a protein capsid which in turn, is covered by a lipoprotein
envelope.
.
The lipoprotein is actually part of the host cell membrane which the virus uses to cover itself as it buds off from the host cell.
.
Between the lipoprotein envelope and the capsid is a layer of hypertonic fluid and because of this the coronavirus is very sensitive to pure water in form of moisture in the air.
.
Outside the body, pure water in the highly humid tropical air will cause the virus to swell and burst, thus inactivating the virion. Even though the virus RNA is still intact, this loss of the envelope will make it incapable of infecting any cell and is as good as a dead dodo.
.
When proteins are subject to heat, their secondary and
tertiary stucture may be disrupted causing them to lose their physical and in some case the chemical properties.
.
Heat will denature the protein capsid as well as the lipoprotein envelope. Denaturation of proteins occurs even at very low temperatures and the rate of denaturation is a function of the temperature, time and nature of the protein.
.
Most viral proteins will be completely denatured at
temperatures greater than 56 degrees C for greater than 30 minutes.
.
The proteins in most coronavirus outside the human body start to degrade at about 30 degrees C.
.
Inside the body, the situation is completely different since the intracellular and extracellular fluids are isotonic, and blessed with a lot of different types of stabilizing colloids and
crystalloids which enable the virus not only to survive but thrive in a normal body temperature of 37 degrees C.
.
Ultra violet (UV) light, especially the high energy short wave-length UV-C inactivates the virus by actually breaking the
covalent bonds of the viral RNA.
.
It takes 3.2 eV of energy to break the weakest covalent bond i.e. the C=N bond in the viral RNA and the UV rays from the sun are much higher than this and as such has no problem in killing the virus.
.
SO THE COMBINATION OF HEAT, HUMIDITY AND SUNLIGHT IN THE TROPICS HAS A LETHAL EFFECT ON THE CORONAVIRUS IN THE ENVIRONMENT.
.
Dr H. W. Looi

 

Warning not quite so read on National Academy of Sciences. More studies are needed to confirm this result, and unlike in the study, the amount of UVB light that reaches Earth’s surface is not constant—it depends on many factors, including time of day and time of year. But regardless of how quickly UVB rays may affect the coronavirus, it is important to note that the study looked at the effect on surfaces, not on people. UV radiation, which most often comes from the sun, is dangerous to people because it damages skin cells. Exposure to UV radiation is the main factor in developing skin cancer.

In other words, exposing your skin to the sun’s UV rays could destroy any coronaviruses present, but it will damage the DNA in your skin’s cells. Over time, the effects of that damage build up and make the cells more likely to develop into skin cancer.
More studies are needed to confirm this result, and unlike in the study, the amount of UVB light that reaches Earth’s surface is not constant—it depends on many factors, including time of day and time of year. But regardless of how quickly UVB rays may affect the coronavirus, it is important to note that the study looked at the effect on surfaces, not on people. UV radiation, which most often comes from the sun, is dangerous to people because it damages skin cells. Exposure to UV radiation is the main factor in developing skin cancer.

In other words, exposing your skin to the sun’s UV rays could destroy any coronaviruses present, but it will damage the DNA in your skin’s cells. Over time, the effects of that damage build up and make the cells more likely to develop into skin cancer.

 

Do you have the link to this article as I cannot find it or even Dr Looi online.

It seems to disagree with
https://www.forbes.com/sites/brucel...-drinking-water-and-swimming/?sh=249184be4360

Precis: "It looks like the COVID-19 coronavirus may be able to live in water for a few days, potentially even a few weeks.

Similarly, consider what is known about the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in water.

Indeed studies have suggested that the SARS-CoV2 could actually hang out in the wet stuff for a little while. For example, a study published in the journal Water Research in 2009 found that two viruses that have similarities to the original SARS virus, the transmissible gastroenteritis (TGEV) and mouse hepatitis (MHV) viruses, could survive up to days and even weeks in water. The University of North Carolina team (LisaCasanova, William A.Rutal, David J.Weber, and Mark D.Sobsey) that conducted the study concluded that “coronaviruses can remain infectious for long periods in water and pasteurized settled sewage, suggesting contaminated water is a potential vehicle for human exposure if aerosols are generated.”

So one says the virus in air can be burst by water and the other says it can survive immersed in water!

I don't dispute the de-denaturing effect of heat as that is what happens during cooking of meats.

 

It's an old post from March 21, and not based on any Western studies. My friend Datu Dr. Hoong Wa Looi was informing his friends on FB for the 5th time that they had a climate advantage and getting more detailed. So this is his short version of the scientific discussion going around for us lay folk. The Malaysaians went with what they knew from SARS, and were successful. They didn't wait and were swift, stopping the spread from two potential major spread events - a religious festival and a vote. They supplied quality masks, stocked up on PPE, screened, bought reagents - the whole smear. They knew it aerosolized, warned about AC buildings, etc., they also did things like disinfect streets, which were criticized. They openly discussed problems like contact tracing the Rhohingya from the religious festival, and that spread from mouth to nose in dense areas would overcome any advantage. They've been successful. 1. They were swift, 2. they went with science and science went with what they knew.

 

The Daily News Journal
shared a post.
5tSphoinsofuSred ·
Shared with:
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BREAKING: Negros Oriental has 26 new COVID-19 cases, Provincial IATF ground commander Dr. Liland Estacion said in a press briefing this afternoon.
Most of the new cases are from Guihulngan City and Santa Catalina with 11 new infections each, including two babies aged five months and nine months old. Other new cases include government employees and frontliners.
One new death was also recorded in Guihulngan City.
Two new cases were also recorded in La Libertad, while Bacong and Siaton have one new case each.
The total case count in Negros Oriental is now at 404, with 154 active cases, 240 recoveries, and 10 deaths. #NewsBite | via Raffy Cabristante, 106.3 Yes The Best News Editor

 

Yes, every time I look I can't ever find SARS or other viruses absorbing water and splitting open. This time I found where they dried it on a surface and tried to rehydrate it. They could get it to plump, but not reactivate, but I couldn't understand the paper and gave up. Both Western and Easter science seems to accept Covid doesn't like humidity of 60% + but no one knows why. That appears to be the state of our knowledge. That a similar virus survives in water seems to contradict the humidity idea, but they test with nebulizers. Weird. Once again I have no answer there.

Here's Looi:
https://www.nsr.org.my/list1viewdetails.asp?Account=665

 

Yes, they used surrogate viruses in the tests, and I understand why, so I'm even more baffled. I remember the lady in Hong Kong who infected the apartment below her. I found this study but don't fully understand it yet:
https://www.hindawi.com/journals/av...C_N_4yvFWtVifmIerSaWKJKERGWNGKdy2eeyWeE8YP6cE

 

Guijulngan does not look good. Is our lab running yet?

 

Something to think about, in preprint so going through peer review.


<snip>The first interesting finding: Children are spreading the virus amongst themselves and also to adults. Second: The greatest risk for infection among the people studied in the two southern Indian states of Tamil Nadu and Andhra Pradesh is a long bus or train ride.

The attack rate — or the risk of transmission from a primary case to someone else — was 80% for passengers sitting next to an infected person on a bus or train for more than 6 hours without a mask. By comparison, there was only a 9% chance of an infected person giving the virus to another member of their household. The chances of a person passing on the virus in a hospital or clinic was 1.2% and the attack rate was just 2.6% for interactions in the general community.

In fact most people — 71%, according to this study — appear to have never passed the virus on to anyone. Given that the outbreak continues to grow, this means there are a small minority of patients responsible for the vast majority of spread.

"Some people just transmit more than other people do because they shed virus," says Ramanan Laxminarayan, the director of the Center for Disease Dynamics, Economics and Policy in New Delhi and one of the lead authors of the study, published this week in the journal Science.

"We've never had a good handle on [superspreaders], and certainly no large-scale study," he says. "Here in this study, we found that 8% of the people who were infected were responsible for 60% of the infections that grew out of these primary cases."<snip>