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Chise Profile picture
@sailorrooscout
Nov 26, 2021 • 20 tweets • 8 min read • Read on X
If there is one thing I am going to tell you today it is to IGNORE the media and the clickbait headlines on this new variant. There is NO plausible scenario this will take us back to square one and there is a lot of misinformation currently circulating. Working on a thread now.
Just a friendly reminder. Despite what you might hear, there has yet to be a variant that isn’t susceptible to the vaccines.

Let’s talk about Nu (B.1.1.529) clear up some misconceptions, and talk about why it is unlikely it will evade vaccine-induced immunity. 🧵
Why are variants unlikely to FULLY evade vaccine-induced immunity?
•Vaccines are POLYCLONAL
•CD8+ T-cells covering 52 epitopes across the spike protein
•CD4+ T-cells covering 23 epitopes across the spike protein
For more on this see: science.org/doi/10.1126/sc… ImageImageImageImage
So, let’s get a couple of things straight NO ONE knows if it is more transmissible at this point. Seeing “Nu is 500% more transmissible” with no data and maybe a bad interpretation of a graph? Yeah, someone is yanking your chain. Also it is NOT a new virus, it is A VARIANT of the
same SARS-COV-2 virus we have been dealing with for almost 2 years now. Stop that. Give me a break. To those saying it is “outcompeting” Delta. Important thing to keep in mind: there hasn’t been much Delta to displace or “outcompete.” Until last week, South Africa was at its
lowest incidence rate since the beginning of the pandemic. In other words, the low incidence of Delta in South Africa kinda means that Nu becoming dominant is weaker evidence of it “outcompeting” it when there really wasn’t much to outcompete so to speak.
You can see for yourself here. With relatively low cases, this may left a void which a new variant could spread into more easily- it likely hasn't had to compete with Delta and in other countries where Delta rages on, it very well may not be as fit. ImageImage
Secondly, we can’t predict virus behavior in its entirety from mutations. Yes, I know the number of mutations is off-putting BUT more mutations ≠ BAD. We have seen other alarming variants that have failed to spread as widely in the past.
Next, I want everyone to know this now, we don’t know if there are other factors that may be helping this to spread. South Africa has a LOW VACCINATION RATE. We are talking about 24% FULLY VACCINATED and this DESPERATELY needs to be fixed.
Vaccine equity is vital. Variants pop up out of low vaccinated areas. Immune evasion may not be needed to spread and fitness could EASILY differ in higher-vaccinated countries, and those dominated by Delta. I also recommend reading this thread here: Image
In regards to those who were infected with Nu, some data has come out regarding the status of some individuals, specifically out of Hong Kong. Vaccinated fully with Pfizer back in May/June, the individual is currently ASYMPTOMATIC. You can read more here:
So, what data DO we have? From this extremely informative thread from it is likely we WILL NOT see Nu FULLY escape vaccine-elicited antibodies, and therefore likely little issues with severe disease. Which IS encouraging. READ THIS: Image
These vaccines are polyclonal, there are non-neutralizing antibodies, and T-CELLS. Will the vaccines take a hit? Likely. as they do with ALL variants. Will it completely render these useless? Absolutely not. For those saying Nu decimates these vaccines to 30% efficacy? Stop that.
TLDR: YES, we need more data. NO, we are NOT going back to square one. The BEST thing you can do right is to GET VACCINATED. GET THE WORLD VACCINATED. GET BOOSTED, it not only restores it EXCEEDS. It is time we stop tripping up over our own feet. This DOESN’T need to be so hard. Image
Angelique Coetzee, chairperson of the South African Medical Association: “It’s all speculation at this stage. It may be it’s highly transmissible but so far the cases we are seeing are EXTREMELY MILD.” theguardian.com/world/2021/nov…
Update on the case in Belgium. Unvaccinated and developed flu-like symptoms after being infected with Nu but NO WORSE symptoms 11 days after returning from Egypt. NO other symptomatic individuals in their household. assets.uzleuven.be/files/2021-11/… Image
Minister of Health of South Africa: There is NO EVIDENCE that the Nu variant evades our current vaccines.
Mathivha was VERY careful to describe "partially vaccinated" as those with just ONE dose of mRNA. Even without a booster, 0% of those currently hospitalized are FULLY vaccinated (two doses of mRNA). This is VERY encouraging. The vaccines ARE working.
Yes, I am aware they have changed it to Omicron from Nu. This thread was written before that announcement. Just know this entire thread is in regards to Omicron (B.1.1.529).
South Africa's Health Minister says, based on a small sample of Omicron cases, the majority of hospital patients are unvaccinated: "It indicates that the vaccines ARE providing protection.” . Let’s stay calm but vigilant. businessinsider.com/omicron-corona… Image

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More from @sailorrooscout

Chise Profile picture
Oct 28
THIS IS HUGE! An HIV PrEP drug candidate in the form of a twice-yearly subcutaneous injection has been shown to reduce HIV infections by 96% in a SECOND late-stage Phase III trial. Lenacapavir was 99.9% effective at preventing HIV in MORE THAN 2,000 participants.🧵⬇️
Source:
• gilead.com/news/news-deta…Image
These results come from the PURPOSE 2 trial evaluating Gilead Sciences’ twice-yearly, subcutaneous Lenacapavir in individuals aged 16 years or older. Lenacapavir, which is a capsid inhibitor, is already approved by the FDA under the brand name Sunlenca for use alongside other
Read 13 tweets
Chise Profile picture
Oct 24
So, not COVID related BUT, this is REALLY exciting news. Phase I/II data shows Moderna’s Norovirus vaccine candidate mRNA-1403, has shown early signs of efficacy AND elicited robust serum HBGA-blocking antibody responses against ALL THREE NoV genotypes. Let’s talk about that!🧵⬇️
At IDWeek 2024, Moderna presented interim results from an ongoing Phase I/II, randomized, observer-blind, placebo-controlled, dose-ranging trial (NCT05992935) for mRNA-1403, a prophylactic vaccine candidate under investigation for norovirus (NoV) infections.
As one of the leading causes of acute gastroenteritis worldwide, NoV is associated with a substantial healthcare burden. Symptoms include vomiting and diarrhoea, which can be severely dehydrating, and the risk of severe outcomes from NoV is greatest in young children and older
Read 16 tweets
Chise Profile picture
Oct 21
THIS IS HUGE! Researchers at JHU have developed an experimental drug called RK-33, that in preclinical studies has shown promise in treating breast cancer with bone metastases. RK-33 eliminated the metastases AND prevented further cancer spread. Let’s talk about that!🧵⬇️
The research has been published in Cancer Letters. Yes, it is PEER-REVIEWED.
• sciencedirect.com/science/articl…Key Takeaways: •RK-33 targets DDX3, an RNA helicase elevated in cancer cells, to inhibit breast cancer bone metastasis. •In mouse models, RK-33 eliminated bone metastases and prevented further cancer spread without significant adverse effects. •The study suggests RK-33 as a promising treatment for breast cancer bone metastasis, urging further research into its broader applications.
In a new study led by Johns Hopkins Medicine, the drug RK-33 has demonstrated promise in treating breast cancer that has spread to the bone (breast cancer bone metastasis). RK-33 was previously shown to help treat other types of cancer and viral illnesses.
Read 14 tweets
Chise Profile picture
Oct 17
THIS IS HUGE! Researchers at Lancaster University have developed RI-AG03, a peptide inhibitor, that in preclinical studies PREVENTED the build-up of harmful Tau proteins in the brain, which are believed to be a key driver of Alzheimer’s disease. Let’s talk about that! 🧵⬇️
The research has been published in Alzheimer’s & Dementia: The Journal of the Alzheimer’s Association. Yes, it is PEER-REVIEWED.
•~ alz-journals.onlinelibrary.wiley.com/doi/10.1002/al…What You Need to Know ⬇️ •Scientists have developed a new drug that targets two key regions of the tau protein, a major contributor to Alzheimer’s disease. •The drug, a peptide inhibitor called RI-AG03, successfully prevented the build-up of toxic tau proteins in both laboratory and fruit fly studies. •Although further research is necessary, including clinical trials in humans, this research contributes to the advancement of more effective therapies for neurodegenerative diseases. •There are two main “hotspots” on the tau protein, where fibril clumping occurs. In this new study, research...
Tau proteins are essential for maintaining the structure and function of neurons. However, in Alzheimer’s disease, these proteins malfunction and aggregate into long, twisted fibrils. As these fibrils build up, they form neurofibrillary tangles- masses of tangled tau proteins
Read 15 tweets
Chise Profile picture
Oct 9
THIS IS HUGE! Researchers at the University of Pennsylvania have developed a vaccine against the bacterium Clostridioides difficile (C.diff), that in preclinical studies, protected against succumbing from infection AND prevented recurring cases. Let’s talk about that! 🧵⬇️
The study has been published in Science. Yes, it is PEER-REVIEWED.
• science.org/doi/10.1126/sc…Model figure. (A) C. difficile toxins target the intestinal epithelium and cause severe pathology and gastrointestinal disease leading to morbidity and mortality. (B) When vaccinated mice are infected with C. difficile, anti-toxin IgG and IgA protect mice from disease and inclusion of PPEP-1 and CdeM as immunogens improves decolonization of toxigenic C. difficile from the gastrointestinal tract. Credit: Science (2024). DOI: 10.1126/science.adn4955
The bacterium Clostridioides difficile is named “difficult” for a reason. Originally, it was hard to grow in the lab, and, now, it’s the source of gut infections that are tough to treat. About half a million people in the U.S. contract C. diff every year, often from hospitals-
Read 15 tweets
Chise Profile picture
Oct 5
THIS IS HUGE! Scientists at the University of Oxford are developing the world's FIRST ovarian cancer vaccine that could potentially wipe the disease out. OvarianVax teaches the immune system to recognize and attack the earliest stages of ovarian cancer. Let’s talk about that!🧵⬇️
The hope is that individuals could receive the vaccine preventatively with the goal of eradicating the disease. Researchers have suggested it could work in a similar way to the human papillomavirus (HPV) vaccine, which is on track to stamp out cervical cancer.
Oxford researchers are designing OvarianVax, a vaccine which teaches the immune system to recognize and attack the earliest stages of ovarian cancer. The team will receive up to £600,000 for the study over the next three years to support lab research into the vaccine.
Read 12 tweets

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