Coronavirus Covid-19 - opšta tema

[Gospodin Oposum]

Just now, InvisibleLight said:

 

Hvala

[arheolog1981]

odlicno ako je tako.

Tako je, svi virusi se identično ponašaju. Nije ovaj razvio krila da leti

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[Dankan Ajdaho]

6 minutes ago, InvisibleLight said:

 

 

Ovo u stavari upućuje da je u pitanju dizajn?

[InvisibleLight]

Just now, Dankan Ajdaho said:

 

Ovo u stavari upućuje da je u pitanju dizajn?

pojma nemam, samo sam prosledila post jer sam ga vid3la juce na FB

[arheolog1981]

 
Ovo u stavari upućuje da je u pitanju dizajn?

Ne

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[Jumanji]

[Dankan Ajdaho]

Ovako je bolje:

 

https://www.nejm.org/doi/full/10.1056/NEJMc2004973

[villiem]

31 minutes ago, arheolog1981 said:

Virus hoće crći van hosta, ne kreće se i ne može da preživi više od nekoliko dana zavisno od površine na koju dospe... Ono što si trebao da izdvojiš je sledeće:

Moramo zaista da se fokusiramo na pronalaženje onih koji su bolesni, koji imaju virus, kako bismo ih izolovali, pronašli njihove kontakte i izolovali i njih", rekao je Majk Rajan iz  SZO-a u intervjuu za BBC.
 

 

Izdvojio sam tacno sta sam hteo jer nije jasno kako ce se bolest javiti ponovo kada se zavrsi karantin, govori se o snaznim zdravstvenim merama, karantin generalno traje dok virus ne umre, svuda, ako sam razumeo, totalni karantin, kraj pandemije, kraj virusa...citacu dalje pa cu pitati detaljnije ..

 

Ovo o pronalazenju i izolovanju je jasno i to se i radi

 

Vise se odnosi na sezonsku pojavu koja je onda kolektivno upoznata il tako nekako, ako se odradi karatin pre upoznavanja onda valjda nismo dovoljno uradili i na koji nacin onda opstaje ako covek kaze da ce se bolset javiti ponovo

 

 

Edited March 22, 2020 by villiem

[אַף אֶחָד]

25 minutes ago, Dankan Ajdaho said:

 

Ovo u stavari upućuje da je u pitanju dizajn?

 

Ne. Svaka sugestija o dizajniranom virusu je besmislena, recimo, koliko i teorija zavere o namestenom spustanju na Mesec.

[Lord Protector]

33 minutes ago, Dankan Ajdaho said:

 

Ovo u stavari upućuje da je u pitanju dizajn?

 

Ne, upravo je takav "dizajn" moguć samo putem mutacija, evolucije i prirodne selekcije. Ima ovde nešto više o tome i o ovim kukama kojima se virus hvata za ćelije:

 

https://www.sciencedaily.com/releases/2020/03/200317175442.htm

 

Quote

Shortly after the epidemic began, Chinese scientists sequenced the genome of SARS-CoV-2 and made the data available to researchers worldwide. The resulting genomic sequence data has shown that Chinese authorities rapidly detected the epidemic and that the number of COVID-19 cases have been increasing because of human to human transmission after a single introduction into the human population. Andersen and collaborators at several other research institutions used this sequencing data to explore the origins and evolution of SARS-CoV-2 by focusing in on several tell-tale features of the virus.

The scientists analyzed the genetic template for spike proteins, armatures on the outside of the virus that it uses to grab and penetrate the outer walls of human and animal cells. More specifically, they focused on two important features of the spike protein: the receptor-binding domain (RBD), a kind of grappling hook that grips onto host cells, and the cleavage site, a molecular can opener that allows the virus to crack open and enter host cells.

Evidence for natural evolution

The scientists found that the RBD portion of the SARS-CoV-2 spike proteins had evolved to effectively target a molecular feature on the outside of human cells called ACE2, a receptor involved in regulating blood pressure. The SARS-CoV-2 spike protein was so effective at binding the human cells, in fact, that the scientists concluded it was the result of natural selection and not the product of genetic engineering.

This evidence for natural evolution was supported by data on SARS-CoV-2's backbone -- its overall molecular structure. If someone were seeking to engineer a new coronavirus as a pathogen, they would have constructed it from the backbone of a virus known to cause illness. But the scientists found that the SARS-CoV-2 backbone differed substantially from those of already known coronaviruses and mostly resembled related viruses found in bats and pangolins.

"These two features of the virus, the mutations in the RBD portion of the spike protein and its distinct backbone, rules out laboratory manipulation as a potential origin for SARS-CoV-2" said Andersen.

Josie Golding, PhD, epidemics lead at UK-based Wellcome Trust, said the findings by Andersen and his colleagues are "crucially important to bring an evidence-based view to the rumors that have been circulating about the origins of the virus (SARS-CoV-2) causing COVID-19."

"They conclude that the virus is the product of natural evolution," Goulding adds, "ending any speculation about deliberate genetic engineering."

 

Edited March 22, 2020 by slow

[Lord Protector]

covid-19 je vrhunski alpinista koji se penje uz ćelije pluća pomoću kuka i pritom  traži slabe tačke unutar njih da bi provalio unutra

 

Edited March 22, 2020 by slow

[Ravanelli]

Izgleda da mandrila ima i u Norveskoj

Nije samo Srbija, Florida, Italija i Australija 

 

 

 

[vememah]

11 hours ago, Dankan Ajdaho said:

Kod Amera krenuo eksponencijalni rast. 

 

+7,301

Kako to misliš - krenuo?

 

Eksponencijalni rast je uzbrdna prava linija na grafikonu s logaritamskom y-osom, poput ove baš za SAD.

 

https://studylib.net/coronavirus-growth

 

Već skoro tri nedelje imaju udesetostručavanje broja registrovanih slučajeva na svakih 8 dana.

Edited March 22, 2020 by vememah

[Budja]

8 hours ago, Redoran said:

U Turskoj juče 277 novozaraženih (ukupno 951) i 12 umrlih (ukupno 21). Broj testiranih je već nekoliko dana isti, nešto ispod tri hiljade na dan. Vlasti nameravaju da sledeće nedelje dostignu deset hiljada na dan.

 

Uvedena je delimična zabrana kretanja za lica startija od 65 godina i sve hronične bolesnike bez obzira na starost. Zabrana je delimična u smislu da ne smeju da budu na javnim mestima i u javnim prostorima ali smeju npr. da sednu u auto i odu u neki privatan prostor (šta god to značilo). Nisam pohvatao da li im je dozvoljeno da idu u prodavnice ali je u svakom slučaju najavljen neki veliki mehanizam da im pomogne oko snabdevanja.

 

Ovog vikenda martovska klasa regruta ide u vojsku a braća Turci, slično nama, imaju veliku tradiciju ispraćaja. Ova tradicija ne podrazumeva samo seosku šatru već i masovku na autobuskoj stanici. Jutros čitava nacija neverue dok gleda snimke iz gradova po Anadoliji (a bilo je i u Istanbulu sigurno) gde ljudi igraju kolce u tri prstena i grle redom i poznato i nepoznato.

 

Edit: tapšemo medicinskim radnicima svake večeri u 9. Solidan odziv.

 

Kod nas mediji forsiraju to tapsanje, ali slabo ide. Meni to ok.

[Tsai]

2 minutes ago, Budja said:

 

Kod nas mediji forsiraju to tapsanje, ali slabo ide. Meni to ok.

 

Meni su radnice u prodavnici nekako jos veci heroji. Zasuze mi oci svaki put kad udjem u maksi, rade, bore se, ne jebu zivu silu.. za crkavicu. Dao bi im bonus od 500% sad