Coronavirus Covid-19 - opšta tema

[kud u maglu Simoviću]

pa da se odlučimo. jel su štetne i obavezne ili korisne i neobavezne

[gospa buba]

pa kad se grana u toliko ishoda, bice po neki za svakog

sent from bubamoto

[villiem]

pppho 

[steins]

1 hour ago, ToniAdams said:

jebemu sve vise u vezi masaka.

hajdemo malo probati da razmislimo, virus se prenosi kapljicno, nema sopsveni pogon, naravno da maska pomaze da te kapljice ne udahnemo, bezobzira sto je sam virus daleko manji nego sto su perforacije na maski kroz koje disemo. 

 

 

ovo da se pinuje na početak svake stranice i da se završi priča oko nošenja maski. 

[mackenzie]

[Tsai]

Jako mi je tesko da poverujem da u Rusiji na 62 hiljade zarazenih ima samo 500 mrtvih. Jel zna neko nesto vise il je u kontaktu s nekim ko zivi tamo? 

[vememah]

Quote

COVID-19 Outbreak Associated with Air Conditioning in Restaurant, Guangzhou, China, 2020

From January 26 through February 10, 2020, an outbreak of 2019 novel coronavirus disease (COVD-19) affected 10 persons from 3 families (families A–C) who had eaten at the same air-conditioned restaurant in Guangzhou, China. One of the families had just traveled from Wuhan, Hubei Province, China. We performed a detailed investigation that linked these 10 cases together. Our study was approved by the Ethics Committee of the Guangzhou Center for Disease Control and Prevention.

On January 23, 2020, family A traveled from Wuhan and arrived in Guangzhou. On January 24, the index case-patient (patient A1) ate lunch with 3 other family members (A2–A4) at restaurant X. Two other families, B and C, sat at neighboring tables at the same restaurant. Later that day, patient A1 experienced onset of fever and cough and went to the hospital. By February 5, a total of 9 others (4 members of family A, 3 members of family B, and 2 members of family C) had become ill with COVID-19.

The only known source of exposure for the affected persons in families B and C was patient A1 at the restaurant. We determined that virus had been transmitted to >1 member of family B and >1 member of family C at the restaurant and that further infections in families B and C resulted from within-family transmission.


Figure. Sketch showing arrangement of restaurant tables and air conditioning airflow at site of outbreak of 2019 novel coronavirus disease, Guangzhou, China, 2020. Red circles indicate seating of future case-patients; yellow-filled red circle indicates index case-patient.

Restaurant X is an air-conditioned, 5-floor building without windows. The third floor dining area occupies 145 m2; each floor has its own air conditioner (Figure). The distance between each table is about 1 m. Families A and B were each seated for an overlapping period of 53 minutes and families A and C for an overlapping period of 73 minutes. The air outlet and the return air inlet for the central air conditioner were located above table C (Figure, panel B).

On January 24, a total of 91 persons (83 customers, 8 staff members) were in the restaurant. Of these, a total of 83 had eaten lunch at 15 tables on the third floor. Among the 83 customers, 10 became ill with COVID-19; the other 73 were identified as close contacts and quarantined for 14 days. During that period, no symptoms developed, and throat swab samples from the contacts and 6 smear samples from the air conditioner (3 from the air outlet and 3 from the air inlet) were negative for severe acute respiratory syndrome coronavirus 2 by reverse transcription PCR.

From our examination of the potential routes of transmission, we concluded that the most likely cause of this outbreak was droplet transmission. Although the index patient (patient A1) was asymptomatic during the lunch, presymptomatic transmission has been reported (1). Given the incubation periods for family B (Appendix Figure), the most likely scenario is that all 3 family B members were directly infected by patient A1. However, we cannot not exclude the possibility that patients B2 and B3 were infected by patient B1, the first family B member to become ill. For family C, a possible scenario is that both patients C1 and C2 were infected by patient A1; another scenario is that the patient C1 acquired the infection while caring for patient C2, beginning on January 27.

Virus transmission in this outbreak cannot be explained by droplet transmission alone. Larger respiratory droplets (>5 μm) remain in the air for only a short time and travel only short distances, generally <1 m (2,3). The distances between patient A1 and persons at other tables, especially those at table C, were all >1 m. However, strong airflow from the air conditioner could have propagated droplets from table C to table A, then to table B, and then back to table C (Figure).

Virus-laden small (<5 μm) aerosolized droplets can remain in the air and travel long distances, >1 m (4). Potential aerosol transmission of severe acute respiratory syndrome and Middle East respiratory syndrome viruses has been reported (5,6). However, none of the staff or other diners in restaurant X were infected. Moreover, the smear samples from the air conditioner were all nucleotide negative. This finding is less consistent with aerosol transmission. However, aerosols would tend to follow the airflow, and the lower concentrations of aerosols at greater distances might have been insufficient to cause infection in other parts of the restaurant.
...

https://wwwnc.cdc.gov/eid/article/26/7/20-0764_article

Edited April 23, 2020 by vememah

[Budja]

2 hours ago, Tsai said:

Jako mi je tesko da poverujem da u Rusiji na 62 hiljade zarazenih ima samo 500 mrtvih. Jel zna neko nesto vise il je u kontaktu s nekim ko zivi tamo? 

 

Nemacka medicina je najjaca.

 

Rusi, Iranci i Kinezi sigurno varaju.

[Tsai]

2 minutes ago, Budja said:

 

Nemacka medicina je najjaca.

 

Rusi, Iranci i Kinezi sigurno varaju.

 

Lepo sam pitao a opet uleces djonom. Nesto ti se mnogo svadja ovih dana svaki post ti je drndanje oko kineza i zapada. Naravno da sto je rezim totalitarniji, vece sumnje i skepsu izaziva. Bar bi trebalo tako da bude, po mom misljenju. Tolko od mene

[gone fishing]

singapurđanska  medicina je ubedljivo najjača 12 umrlih na 11k zaraženih

[mlatko]

brđanska  medicina je ubedljivo najjača 12 umrlih na 11 zaraženih

+1

Inviato dal mio Mi 9 Lite utilizzando Tapatalk

[Milošica]

3 hours ago, Tsai said:

Jako mi je tesko da poverujem da u Rusiji na 62 hiljade zarazenih ima samo 500 mrtvih. Jel zna neko nesto vise il je u kontaktu s nekim ko zivi tamo? 

Mislim da sam negde pročitao da će kod njih ubrzano rasti brojka u naredne dve nedelje.

Edited April 23, 2020 by Milošica

[Tsai]

9 minutes ago, Milošica said:

Mislim da sam negde pročitao da će kod njih ubrzano rasti brojka u naredne dve nedelje.

 

Da se razumemo, ne daj boze da se to desi i nadam se da su brojke tacne. Ne prizivam nista, samo mi je zvucalo nestvarno

Edited April 23, 2020 by Tsai

[ObiW]

3 hours ago, Tsai said:

Jako mi je tesko da poverujem da u Rusiji na 62 hiljade zarazenih ima samo 500 mrtvih. Jel zna neko nesto vise il je u kontaktu s nekim ko zivi tamo? 

Slicne brojke (proporcionalno) su u Hjustonu, uzem gradskom jezgru. 3 hiljade zarazenih, 35 mrtvih. Pet dana uzastopno oko 120-130 zarazenih, pa poslednja dva dana po 20. 

[cedo]

makedonija danas

 

41 novi, 649 testova, 0 preminulih, 29 ozdravilo

 

ukupno

 

1300, 13649, 56, 301

 

maske (prekriven nos i usta) obavezne svuda osim napolju ako imas 2 metra razmaka,  u kolima ako se vozis sa familijom i ako sportujes (voznja bicikla, trcanje)

kazne 20 evra

Edited April 23, 2020 by cedo