International BA 5 wave

Third distinct omicron wave

Investigation of SARS-CoV-2 variants: technical briefings

BA.5 growing 35.1% faster than Omicron subvariant BA.2

BA.5 growing 19.1% faster than Omicron subvariant BA.2


Increase in hospital patients, probably our best proxy

Or test positivity, (14%)

UK hospital data


Professor Adrian Esterman, University of South Australia

Basically of those subvariants … are all in Australia at the moment and will be competing against each other

At the moment BA.2 is the majority of cases in Australia, but BA.5 is starting to take over

Australian Influenza Surveillance Report and Activity Updates – 2022

147,155 official notifications

55,101 in the last 2 weeks

Influenza A, 83.4%

H1N1, 0.8%

A and B coinfections, less than 0.1%

Highest notification rates in children

Zoe data

New covid wave

Cases, + 225,464

Up 40% on the week

Prevalence, one in 27

Scotland, one in 18

UK R = 1.1

BA.5 surge

Similar transmissibility as BA.2

Immune escape

More reinfections, from this year and last

No increase in deaths, a little down on the week

Hospitalisations, up 33% on the week

Individual risk is less

Increases in all age groups

Increases in all regions

Long covid

New cases, + 3,851 (more than 3 months)

Omicron, less likelihood of LC compared to delta infection

More cases overall due to sheer numbers of infections

Risk of getting LC with BA.1

One in 23 infections (more than a month)

ONS data

UK, 1.7 million infections last week

1,360,600 (1 in 40 people) in England

68,500 (1 in 45 people) in Wales

59,900 (1 in 30 people) in Northern Ireland

250,700 (1 in 20 people) in Scotland

London, 25 to 34 year olds

Antibodies, January to February 2022

Secondary school pupils 96.6%

Primary school pupils 62.4%

Dr. Rochelle Walensky


recommending a second safe and effective vaccine for children ages 6 through 17 years

Written by Dr. John Campbell

Hello Everyone,My name is John Campbell and I am a retired Nurse Teacher and A and E nurse based in England. I also do some teaching in Asia and Africa when time permits. These videos are to help students to learn the background to all forms of health care. My PhD focused on the development of open learning resources for nurses nationally and internationally.


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  1. Dr. Campbell, as avid tennis fans, we are horrified that there are little protocols at Wimbledon between the players and crowds, and the players have started to withdraw due to positive COVID tests. Berretini and Cilic today. We think things will get worse as All England will try to change protocols midstream.

  2. I have had moderna x2 vax and 1 moderna booster and I’m now sick with Covid for the second time this year. This is obviously not going away anytime soon. The first bout lasted 2 weeks and this second round 5 days so far.

  3. Your the reason so many have been harmed, those of have mild symptoms still need to realase covid effects your brain, your a crazy lunatic with your videos

  4. I'm covid recovered from June 2020. I haven't been sick since but last week myself and 7 colleagues got covid. I'm very sick similar to first time. I don't think I have immunity to this new variant. Anyone have similar experience?

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