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BA.4? BA.5? Here’s what we know so far

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It’s hard to keep up with all the variants!

Here’s a summary of the latest on #BA4 and #BA5.

The short version: two new versions of the virus that causes #COVID19 are spreading rapidly throughout the world. They’re dangerous, especially for vulnerable people.

 

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Sources
  1. Coronavirus (COVID-19) Update: FDA Authorizes Moderna and Pfizer-BioNTech COVID-19 Vaccines for Children Down to 6 Months of Age
  2. Tracking SARS-CoV-2 variants
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  4. COVID-19 variants identified in the UK
  5. Five things we’ve learned about the BA.4 and BA.5 Omicron variants
  6. Lineage BA.4
  7. Lineage BA.5
  8. The BA.5 story
  9. Continued Emergence and Evolution of Omicron in South Africa: New BA.4 and BA.5 lineages
  10.  Further antibody escape by Omicron BA.4 and BA.5 from vaccine and BA.1 serum 
  11. SARS-CoV-2 variants BA.4 and BA.5 show substantial immune escape compared with BA.1 and BA.2
  12. Are COVID surges becoming more predictable? New Omicron variants offer a hint
  13. Omicron sub-lineages BA.4/BA.5 escape BA.1 infection elicited neutralizing immunity
  14. Virological characteristics of the novel SARS-CoV-2 Omicron variants including BA.2.12.1, BA.4 and BA.5 
  15. How bad is the fresh wave of COVID-19 infections being driven by the BA.4 and BA.5 variants likely to be?
  16. COVID Data Tracker
  17. Expert Ali Raja, MD Twitter Tread about BA.4 and BA.5 dominance in the US
  18. SARS-CoV-2 variants of concern and variants under investigation in England Technical briefing 43
  19. Implications of the emergence and spread of the SARS-CoV-2 variants of concern BA.4 and BA.5 for the EU/EEA
  20. The BA.4/5 Omicron sub-variants triggered waves of Covid hospitalisations in South Afriva and Portugal, and are now sending numbers rising elsewhere
  21. As BA.4 and BA.5 take hold, experts say a summer wave of COVID-19 is underway
  22. COVID-19: Improving indoor ventilation
  23. Fears of a COVID-19 summer surge prompt experts to call for a return to masking
  24. The impact of population-wide rapid antigen testing on SARS-CoV-2 prevalence in Slovakia
  25. résumé de la déclaration du comité consultatif national de l’immunisation (ccni) du 29 juin 2022
  26. Global Dashboard for Vaccine Equity
  27. CoVaRR-Net
  28. WHO Director-General’s opening remarks at the WHO press conference
  29. An expert explains how to track coronavirus variants
  30. Omicron BA.4 and BA.5: What to know about the new variants
  31. Where did Omicron come from? Three key theories