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Covid vaccines may be getting worse at stopping new variants – but they're still lowering the risk

By Sarah L Caddy for The Conversation, The rise of the omicron variant has caused havoc around the world, just as the emergence of the delta and alpha variants did before. A pattern has emerged, with the world scrambling to respond to a new form of the coronavirus every six or so months. How can we reduce the risk of new variants appearing again and again? ....

United Kingdom , University Of Cambridge , Sarahl Caddy , Current Covid , Viral Immunology , Veterinary Surgeon , Coronavirus Vaccine , Covid 19 ,

Coronavirus and antibody evolution


The emergence of “variants of concern” has raised questions about our long-term immunity to the coronavirus. Will the antibodies we make after being infected with or vaccinated against the dominant lineage, called D614G, protect us against future viral variants?
To answer this question, scientists have been examining how our antibody responses to the coronavirus develop over time. Several studies have recently compared the difference between antibodies produced straight after a coronavirus infection and those that can be detected six months later. The findings have been both impressive and reassuring.
Although there are fewer coronavirus-specific antibodies detectable in the blood six months after infection, the antibodies that remain have undergone significant changes. Researchers have tested their ability to bind to proteins from the new coronavirus variants and found that 83% of the “mature” antibodies were better at recognizing the variants. A recent preprint ( ....

United Kingdom , Meng Wang , Sakurra Shutterstock , Kateryna Kon Shutterstock , University Of Cambridge , Laboratory Of Molecular Biology In Cambridge , Clinical Research Fellow In Viral Immunology , Cancer Research United Kingdom Clinician Scientist , Sarahl Caddy , Molecular Biology , Clinical Research Fellow , Viral Immunology , Veterinary Surgeon , Creative Commons , ஒன்றுபட்டது கிஂக்டம் , மெங் வாங் , பல்கலைக்கழகம் ஆஃப் கேம்பிரிட்ஜ் , ஆய்வகம் ஆஃப் மூலக்கூறு உயிரியல் இல் கேம்பிரிட்ஜ் , மருத்துவ ஆராய்ச்சி சக இல் வைரஸ் நோயெதிர்ப்பு , புற்றுநோய் ஆராய்ச்சி ஒன்றுபட்டது கிஂக்டம் மருத்துவர் விஞ்ஞானி , மூலக்கூறு உயிரியல் , மருத்துவ ஆராய்ச்சி சக , வைரஸ் நோயெதிர்ப்பு , கால்நடை அறுவை சிகிச்சை நிபுணர் , படைப்பு காமன்ஸ் ,