Thursday 30th Part 2

Australia
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.

Видео Thursday 30th Part 2 канала Dr. John Campbell