Transmission

Diluting the concentration of virus in the air could prevent infection. Fresh Air!

Further work is required to understand the exact impact of the new coronavirus variant, C.1.2. A competitive advantage over the Delta variant?

Myanmar is at risk of becoming a super-spreader Covid-19 state that fuels outbreaks across the region.

At the height of the pandemic, it was easy to worry that strangers would give you the virus. But what happened after people’s birthdays suggests that people we trust were also a common source of viral spread.

Hence, it is critical to mitigate this risk by improving ventilation and air quality in indoor environments. Can I get Covid-19 by sharing a lift or eating food delivered by someone infected?

Covid-19 spreads when an infected person breathes out droplets and very small particles that contain the virus. People who are closer than 6 feet (less than 2 metres) from the infected person are most likely to get infected.

So the message ‘hands, face, space’ should be really ‘space, space, hands’. The way this virus transmits is really through conversational distance. Use the garlic-breath distance.

The study’s findings suggest that the mouth, via infected oral cells, plays a bigger role in SARS-CoV-2 infection that previously thought.

If repeat infections tell us anything, it’s that the less the virus mutates, the longer we’ll be able to protect ourselves against it. 

Allowing school-age kids back to classrooms with good protocols in place won’t be the main driver of transmission in the community. Additional interventions among adults aged 20-49 would prevent COVID-19 spread.

But cars come with risks of their own. Even if you’re wearing a face covering, you still get tiny aerosols that are released every time you breathe.

Countries are being overwhelmed by surges in cases (Mutations and Variants) that have led to border closures, quarantines and more aggressive pushes for the public to get vaccinated.

The environment-to-human transmission has become a new pattern in the spread of the coronavirus. Increased number of cases, caused by coronavirus-contaminated cold-chain imports were reported across the country.

The mutated virus did in fact have a distinct advantage, infecting people more easily (Europe, US) than the original variant detected in China.

The risk of contagion is highest in indoor spaces but can be reduced by applying all available measures to combat infection via aerosols.

In addition to existing mandates of mask-wearing, social distancing, and hygiene efforts, we urge public health officials to add clear guidance about the importance of moving activities outdoors, improving indoor air using ventilation and filtration, and improving protection for high-risk workers.

These transmissions occurred within enclosed spaces that had inadequate ventilation.

Covid-19 is requiring longer-term behaviour change to reduce transmission from every one of us in the society.

Coronaviruses such as SARS-CoV-2 are relatively stable as viruses go. But every mutation is a roll of the dice. The virus has had abundant opportunities to change, potentially with troublesome consequences.

Luchten helpt staat in grote letters in een voorlichtingsvideo van de Duitse overheid over corona. Volgens hem wijzen onze oosterburen veel meer op het belang van ventilatie dan de Nederlandse overheid.

I think the CDC have changed their testing guidelines in order to prevent the virus being spread by people with a negative test result.

At a Covid-19 party, the host has tested positive. He or she then does not sit down with a math primer to understand how many human dominoes they might cause to fall. Nor does the host watch this handy video which, in three short minutes, explains the deadly implications of exponential growth of infection.

@AliNouriPhD: hundreds of building experts from 51 countries to @WHO: Help us address airborne sars-cov-2 and recognize airborne spread. Work with us on indoor best practices to protect building occupants worldwide.

The longer the coronavirus can remain infectious in the air, the more likely it can infect people, particularly indoors, leading to the possible need to alter air filtration and circulation within buildings.

On Jan. 20, one infected passenger boarded the cruise ship; a month later, more than 700 of the 3,711 passengers and crew members had tested positive, with many falling seriously ill.

De grote corona-uitbraak aan boord van een cruiseschip toont aan dat het virus zich vooral kon verspreiden via aerosolen

Droplet physics are significantly dependent on weather. If you’re in a colder, humid climate, droplets from a sneeze or cough are going to last longer and spread farther than if you’re in a hot dry climate, where they’ll get evaporated faster.

If airborne transmission is a significant factor in the pandemic, especially in crowded spaces with poor ventilation, the consequences for containment will be significant.

Increasing evidence points to transmission of SARS-CoV-2, the coronavirus that causes COVID-19, by asymptomatic or presymptomatic persons. Two studies contribute to the concept that these persons can transmit infection by producing respiratory droplets or aerosols.

While asymptomatic people never show signs of the coronavirus, presymptomatic people exhibit no signs of contracting the disease for the first few days before experiencing the classic symptoms

Read on Forbes


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