Tag: <span>transmitters</span>

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WHO does not endorse an immunity passport

The scientific evidence gathered so far does not provide certainty that a person who has contracted the coronavirus, has recovered, and has generated antibodies is protected against a second infection, leaving behind the idea of an immunity passport, according to the World Health Organization (WHO). This is WHO’s reaction to claims by some governments that...

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Nose cells identified as likely COVID-19 entry points

Researchers from the Wellcome Trust Sanger Institute (United States) have identified two specific types of cells in the nose as points of probable initial infection for the COVID-19 coronavirus. In their work, published in the journal Nature Medicine, they have found that goblet and cylindrical cells in the nose have high levels of the input...

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Evidence of stray dogs as possible origin of COVID-19 pandemic

Since the COVID-19 was first detected, virologists work against the clock to complete the full history of SARS-CoV-2. It is a crucial detective job not only when developing a vaccine, but also to prevent future infections. That task is to examine the genetic sequence of SARS-CoV-2 and compare it to that of other known coronavirus...

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Surgical and N95 masks

The rapid global spread of SARS-CoV-2 and the resulting coronavirus disease (COVID-19) pandemic has led to urgent efforts to contain and mitigate transmission, leading to significant and widespread socioeconomic disruption. As of April 3rd 2020, over one million cases have been reported worldwide, as well as over 60,000 deaths, with ongoing spread in most parts...

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COVID-19 outbreak associated with air conditioning in restaurant

A new publication studies what happened in a restaurant and how air conditioning, an ordinary element in any place that serves food, could have helped infect at least nine people with COVID-19. This is the first work to suggest that air conditioning could play a role in COVID-19 transmission. The analyzed date took place on...

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City size and COVID-19 attack rate

The current outbreak of novel coronavirus disease 2019 (COVID-19) poses an unprecedented global health and economic threat to interconnected human societies. Until a vaccine is developed, strategies for controlling the outbreak rely on aggressive social distancing. These measures largely disconnect the social network fabric of human societies, especially in urban areas. A new study estimates...

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COVID-19 may be transmitted through the eye, report finds

A new report published by JAMA Ophthalmology found preliminary data may suggest SARS-CoV-2, the virus that causes COVID-19, might be transmitted through the eye. Researchers analyzed data from 38 patients infected with COVID-19 from Hubei Province, China, and found 12 (31.6%) individuals had ocular manifestations, including epiphora, conjunctival congestion, or chemosis. These symptoms commonly occur...

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Impact of asymptomatic carriers on COVID-19 transmission

Asymptomatic carriers of the virus display no clinical symptoms but are known to be contagious. Recent evidence reveals that this sub-population, as well as persons with mild symptoms, represent a major contributor in the propagation of COVID-19. The asymptomatic sub-population frequently escapes detection by public health surveillance systems. Because of this, the currently accepted estimates...

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Is herd immunity the solution?

If we have not been able to contain the COVID-19 pandemic we can at least wait for that point where we have all passed the disease and become immune. This is the strategy of the Government of Boris Johnson (United Kingdom) ―different from that of other countries―, to combat COVID-19. Although this is a tempting...

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New coronavirus may spread as an airborne aerosol, like SARS

The novel coronavirus SARS-CoV-2 can be detected up to 3 hours after aerosolization and can infect cells throughout that time period, the study authors found. To see how long SARS-CoV-2 survives as an aerosol, the researchers fed samples of the virus through a nebulizer and sprayed the aerosolized particles into a drum-like structure. They then...