Thursday 30th Part 2
April 30, 2020
124,360
3,978
1,352
4.29%
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Dr John Campbell Episodes Around April 30, 2020
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33:47Now PlayingThursday 30th Part 2
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as posted by the channelAustralia
Cases, 6,754
Deaths 92 (CFR = 1.4)
“More than two million people downloaded the coronavirus tracking app in the first 24 hours, a take-up Health Minister Greg Hunt described as "magnificent".
The University of Queensland’s COVID-19 vaccine has passed another important milestone, showing the ability to raise high levels of antibodies that can neutralise the virus in early pre-clinical testing
Professor Paul Young; “We were particularly pleased that the strength of the antibody response was even better than those observed in samples from COVID-19 recovered patients.”
US
Cases, 1, 040, 488
Deaths, 60, 999
Meat packing plants in the USA and Canada
Many workers black or brown
Somalis gravitate to this type of work
Chemicals used for processing meat in the USA may affect respiratory health
Crowded conditions: people work elbow to elbow
Poor ventilation
Limited access to hygiene
Workers who are foreigners or migrants often live in dormitory-style residences
Take a crowded van or bus to work
Access to fresh food
Senegal
Cases, 933
Deaths, 9
Dr Sall, director Pasteur institute, Senegal
Zika and Ebola experience
Suitcase laboratories, produced in country
Contain at source
Afghanistan
Biggest daily rise of cases
Cases Thursday + 232 = 2,171.
Deaths 64
Limited and patchy lockdown
Most cities streets still crowded
WHO, Dr. Margaret Harris
Nature medicine
Respiratory virus shedding in exhaled breath and efficacy of face masks
N=246
111 were infected by human (seasonal) coronavirus, influenza virus, rhinovirus
3 co-infected
We tested viral shedding in nasal swabs, throat swabs, respiratory droplet samples and aerosol samples
compared viruses in respiratory droplet samples and aerosol samples between with or without a face mask
Viral RNA was identified from respiratory droplets and aerosols for all three viruses
We detected coronavirus in respiratory droplets and aerosols in 4 of 10 of the samples collected without face masks
but did not detect any virus in respiratory droplets or aerosols collected from participants wearing face masks
Our results indicate that aerosol transmission is a potential mode of transmission for coronaviruses as well as influenza viruses and rhinoviruses.
We also demonstrated the efficacy of surgical masks to reduce coronavirus detection and viral copies in large respiratory droplets and in aerosols
This has important implications for control of COVID-19, suggesting that surgical face masks could be used by ill people to reduce onward transmission.
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