Fabian Rivera-Chávez
@fabianrchavez.bsky.social
Assistant Professor in the Departments of Pediatrics & Molecular Biology at UC San Diego. Interested in host-microbe biology, bacterial toxins, and metabolism.
Pinned
Cholera toxin-induced disease generates epithelial cell-derived L-lactate that promotes Vibrio cholerae growth in the small intestine
Cholera toxin (CT) promotes Vibrio cholerae colonization by altering gut metabolism to favor pathogen growth. We have previously found that CT-induced disease leads to increased concentrations of L-la...
www.biorxiv.org
1/ Excited to share the first preprint from my lab! 🎉
My postdoc Paz asked how cholera toxin (CT) helps Vibrio cholerae thrive in the gut.
Turns out, CT rewires epithelial metabolism toward L-lactate production—fueling pathogen growth in the small intestine during disease
My postdoc Paz asked how cholera toxin (CT) helps Vibrio cholerae thrive in the gut.
Turns out, CT rewires epithelial metabolism toward L-lactate production—fueling pathogen growth in the small intestine during disease
Reposted by Fabian Rivera-Chávez
Important and timely read in the New England Journal of Medicine:
Twelve former commissioners of the FDA express concern that the agency’s recent moves will undermine a regulatory model designed to ensure vaccine safety, effectiveness, and availability.
Twelve former commissioners of the FDA express concern that the agency’s recent moves will undermine a regulatory model designed to ensure vaccine safety, effectiveness, and availability.
A Threat to Evidence-Based Vaccine Policy and Public Health Security at the FDA | NEJM
Twelve former commissioners of the FDA express concern that the agency’s recent moves will undermine a regulatory model designed to ensure vaccine safety, effectiveness, and availability.
www.nejm.org
December 5, 2025 at 2:54 AM
Important and timely read in the New England Journal of Medicine:
Twelve former commissioners of the FDA express concern that the agency’s recent moves will undermine a regulatory model designed to ensure vaccine safety, effectiveness, and availability.
Twelve former commissioners of the FDA express concern that the agency’s recent moves will undermine a regulatory model designed to ensure vaccine safety, effectiveness, and availability.
Reposted by Fabian Rivera-Chávez
Applications for UC San Diego RAPID program's 2026-27 cohort are now open! This highly-rated and effective career development opportunity is for junior faculty researchers in #InfectiousDiseases.
Learn more and apply today at rapid.ucsd.edu!
#UCSD_RAPID #FacultyDevelopment
Learn more and apply today at rapid.ucsd.edu!
#UCSD_RAPID #FacultyDevelopment
November 3, 2025 at 5:55 PM
Applications for UC San Diego RAPID program's 2026-27 cohort are now open! This highly-rated and effective career development opportunity is for junior faculty researchers in #InfectiousDiseases.
Learn more and apply today at rapid.ucsd.edu!
#UCSD_RAPID #FacultyDevelopment
Learn more and apply today at rapid.ucsd.edu!
#UCSD_RAPID #FacultyDevelopment
Reposted by Fabian Rivera-Chávez
What do I love the most about UCSD? My amazing colleagues. Congratulations @chulab.bsky.social and @alistairrussell.bsky.social on your promotion and to Kees Murre for being elected to the NAS!
June 27, 2025 at 2:37 AM
What do I love the most about UCSD? My amazing colleagues. Congratulations @chulab.bsky.social and @alistairrussell.bsky.social on your promotion and to Kees Murre for being elected to the NAS!
Reposted by Fabian Rivera-Chávez
Excited to share our new publication, out today in Nature! www.nature.com/articles/s41.... @kanchanj.bsky.social led this fascinating fungal-bacterial interaction project. We are grateful for our wonderful collaborators Brian Peters and David Underhill.
Commensal yeast promotes Salmonella Typhimurium virulence - Nature
Commensal Candida albicans enhances the virulence and dissemination of Salmonella enterica subsp. enterica serovar Typhimurium.
www.nature.com
September 3, 2025 at 4:32 PM
Excited to share our new publication, out today in Nature! www.nature.com/articles/s41.... @kanchanj.bsky.social led this fascinating fungal-bacterial interaction project. We are grateful for our wonderful collaborators Brian Peters and David Underhill.
1/ Excited to share the first preprint from my lab! 🎉
My postdoc Paz asked how cholera toxin (CT) helps Vibrio cholerae thrive in the gut.
Turns out, CT rewires epithelial metabolism toward L-lactate production—fueling pathogen growth in the small intestine during disease
My postdoc Paz asked how cholera toxin (CT) helps Vibrio cholerae thrive in the gut.
Turns out, CT rewires epithelial metabolism toward L-lactate production—fueling pathogen growth in the small intestine during disease
Cholera toxin-induced disease generates epithelial cell-derived L-lactate that promotes Vibrio cholerae growth in the small intestine
Cholera toxin (CT) promotes Vibrio cholerae colonization by altering gut metabolism to favor pathogen growth. We have previously found that CT-induced disease leads to increased concentrations of L-la...
www.biorxiv.org
August 18, 2025 at 9:13 PM
1/ Excited to share the first preprint from my lab! 🎉
My postdoc Paz asked how cholera toxin (CT) helps Vibrio cholerae thrive in the gut.
Turns out, CT rewires epithelial metabolism toward L-lactate production—fueling pathogen growth in the small intestine during disease
My postdoc Paz asked how cholera toxin (CT) helps Vibrio cholerae thrive in the gut.
Turns out, CT rewires epithelial metabolism toward L-lactate production—fueling pathogen growth in the small intestine during disease
Reposted by Fabian Rivera-Chávez
Saddened to learn of the passing of Moselio "Elio" Schaechter—Distinguished Professor at Tufts, SDSU and UCSD—humanist and visionary leader in the fields of microbiology and scientific communication—mentor, friend, and inspiration to me and so many others
Small Things Considered
Big Things Achieved
Small Things Considered
Big Things Achieved
August 15, 2025 at 3:12 PM
Saddened to learn of the passing of Moselio "Elio" Schaechter—Distinguished Professor at Tufts, SDSU and UCSD—humanist and visionary leader in the fields of microbiology and scientific communication—mentor, friend, and inspiration to me and so many others
Small Things Considered
Big Things Achieved
Small Things Considered
Big Things Achieved
Reposted by Fabian Rivera-Chávez
The Raffatellu, Chu @chulab.bsky.social Rivera-Chavez @fabianrchavez.bsky.social labs were well represented at the #standupforscience @standupforscience.bsky.social event at #UCSD today!
March 7, 2025 at 10:29 PM
The Raffatellu, Chu @chulab.bsky.social Rivera-Chavez @fabianrchavez.bsky.social labs were well represented at the #standupforscience @standupforscience.bsky.social event at #UCSD today!
Reposted by Fabian Rivera-Chávez
Microbiome science needs more microbiologists- A new commentary authored by myself and @abaumler.bsky.social www.nature.com/articles/s41...
Microbiome science needs more microbiologists - Nature Microbiology
Microbiome science is a multi-disciplinary field, but classical microbiologists are needed to ensure advances are grounded in our understanding of basic microbiological concepts.
www.nature.com
January 23, 2025 at 5:14 PM
Microbiome science needs more microbiologists- A new commentary authored by myself and @abaumler.bsky.social www.nature.com/articles/s41...
Reposted by Fabian Rivera-Chávez
Can classical microbiology transform microbiome research? 🤔 Our new article explores how integrating microbiological concepts can build a stronger theoretical framework for microbiome sciences. 🌟 Read more about the path to hypothesis-driven research:
Microbiome science needs more microbiologists- A new commentary authored by myself and @abaumler.bsky.social www.nature.com/articles/s41...
Microbiome science needs more microbiologists - Nature Microbiology
Microbiome science is a multi-disciplinary field, but classical microbiologists are needed to ensure advances are grounded in our understanding of basic microbiological concepts.
www.nature.com
January 25, 2025 at 2:10 AM
Can classical microbiology transform microbiome research? 🤔 Our new article explores how integrating microbiological concepts can build a stronger theoretical framework for microbiome sciences. 🌟 Read more about the path to hypothesis-driven research:
Reposted by Fabian Rivera-Chávez
All brought to you by the good people at OMICS International who own and operate“more than 500 peer-reviewed journals”
So do I
(A) just ignore this?
(B) do something?
If you chose the latter, what do you suggest I do?
Any replies with some guidance or cynical humor welcome
So do I
(A) just ignore this?
(B) do something?
If you chose the latter, what do you suggest I do?
Any replies with some guidance or cynical humor welcome
February 5, 2025 at 3:49 AM
All brought to you by the good people at OMICS International who own and operate“more than 500 peer-reviewed journals”
So do I
(A) just ignore this?
(B) do something?
If you chose the latter, what do you suggest I do?
Any replies with some guidance or cynical humor welcome
So do I
(A) just ignore this?
(B) do something?
If you chose the latter, what do you suggest I do?
Any replies with some guidance or cynical humor welcome
Reposted by Fabian Rivera-Chávez
Academic Skyers: I am compiling a list of policies and statements from various universities about how they are handling the "pause" in terms of stopping expenditures (or not).
Please respond to this post with your institution and materials.
THANK YOU!
Please respond to this post with your institution and materials.
THANK YOU!
January 28, 2025 at 5:35 PM
Academic Skyers: I am compiling a list of policies and statements from various universities about how they are handling the "pause" in terms of stopping expenditures (or not).
Please respond to this post with your institution and materials.
THANK YOU!
Please respond to this post with your institution and materials.
THANK YOU!
Reposted by Fabian Rivera-Chávez
We are lookkng for a behavioral neurologist to join us at Stanford in sunny California! Feel free to reach out to me with any questions! 🌞😊🧠
The Division of Memory in the Department of Neurology at Stanford University seeks a board-certified neurologist with training in behavioral neurology or equivalent to join the Department. #StanfordJobs #Neurology
facultypositions.stanford.edu/cw/en-us/job...
facultypositions.stanford.edu/cw/en-us/job...
December 11, 2024 at 3:02 AM
We are lookkng for a behavioral neurologist to join us at Stanford in sunny California! Feel free to reach out to me with any questions! 🌞😊🧠
Reposted by Fabian Rivera-Chávez
Beautiful paper from the Elizabeth Winzeler laboratory at UC San Diego out today in Science building a predictive model of malaria drug resistance by analyzing the genomes of 724 parasite genomes evolved in the lab to resist one of 118 different antimalarial compounds
today.ucsd.edu/story/a-new-...
today.ucsd.edu/story/a-new-...
A New Approach to Predicting Malaria Drug Resistance
Researchers at UC San Diego analyzed the genomes of hundreds of malaria parasites to determine which genetic variants are most likely to confer drug resistance.
today.ucsd.edu
December 10, 2024 at 8:49 PM
Beautiful paper from the Elizabeth Winzeler laboratory at UC San Diego out today in Science building a predictive model of malaria drug resistance by analyzing the genomes of 724 parasite genomes evolved in the lab to resist one of 118 different antimalarial compounds
today.ucsd.edu/story/a-new-...
today.ucsd.edu/story/a-new-...
Reposted by Fabian Rivera-Chávez
An updated list with those added who wanted to join go.bsky.app/VVLoMPx
December 4, 2024 at 12:30 AM
An updated list with those added who wanted to join go.bsky.app/VVLoMPx
Reposted by Fabian Rivera-Chávez
Nothing is better than your past trainees successes
November 26, 2024 at 1:54 AM
Nothing is better than your past trainees successes
Reposted by Fabian Rivera-Chávez
Believe it or not, GRC has told me we need more registered applicants or this meeting might not survive! Please don't let that happen if you can afford to attend 🙏
If you're interested in learning about the latest of fundamental mycobacteriology, sign up for #GRCMyco2025! Acceptances will start in September, check out the full program and please RT!
We're live with the program!
www.grc.org/biology-of-m...
www.grc.org/biology-of-m...
November 19, 2024 at 10:46 PM
Believe it or not, GRC has told me we need more registered applicants or this meeting might not survive! Please don't let that happen if you can afford to attend 🙏
Reposted by Fabian Rivera-Chávez
This will me my fist blueet! Microbial N-Acyl lipids have been shown to regulate glucose, pain etc among other things. Therefore Helena, Vincent and Martijn asked the question - are there more and if so what types? And boy did they find some www.biorxiv.org/content/10.1...
The microbiome diversifies N-acyl lipid pools - including short-chain fatty acid-derived compounds
N -acyl lipids are important mediators of several biological processes including immune function and stress response. To enhance the detection of N -acyl lipids with untargeted mass spectrometry-based...
www.biorxiv.org
November 19, 2024 at 3:19 AM
This will me my fist blueet! Microbial N-Acyl lipids have been shown to regulate glucose, pain etc among other things. Therefore Helena, Vincent and Martijn asked the question - are there more and if so what types? And boy did they find some www.biorxiv.org/content/10.1...
Reposted by Fabian Rivera-Chávez
What I said Jan 2022...
So if we all agree that we will be living with respiratory viruses in the future & that they have an airborne transmission component, can we agree that it is essential to clean indoor air using filtration & ventilation for all schools/businesses so we can get our lives back?
So if we all agree that we will be living with respiratory viruses in the future & that they have an airborne transmission component, can we agree that it is essential to clean indoor air using filtration & ventilation for all schools/businesses so we can get our lives back?
November 17, 2024 at 3:03 AM
What I said Jan 2022...
So if we all agree that we will be living with respiratory viruses in the future & that they have an airborne transmission component, can we agree that it is essential to clean indoor air using filtration & ventilation for all schools/businesses so we can get our lives back?
So if we all agree that we will be living with respiratory viruses in the future & that they have an airborne transmission component, can we agree that it is essential to clean indoor air using filtration & ventilation for all schools/businesses so we can get our lives back?
Reposted by Fabian Rivera-Chávez
Hi everyone, this is my first post here and it’s great to get so many new connections. My lab works on host-pathogen interaction, particularly in the context of Salmonella infection, mucosal immunity, microbiota-host interaction, microbial competition. We are a fun, diverse, enthusiastic group.
November 14, 2024 at 4:16 AM
Hi everyone, this is my first post here and it’s great to get so many new connections. My lab works on host-pathogen interaction, particularly in the context of Salmonella infection, mucosal immunity, microbiota-host interaction, microbial competition. We are a fun, diverse, enthusiastic group.
Reposted by Fabian Rivera-Chávez
BlueSky I really need you to stick this landing.
November 7, 2024 at 5:00 PM
BlueSky I really need you to stick this landing.
Reposted by Fabian Rivera-Chávez
Hiiii Fun facts in no particular order: I’m a NIH-funded physician scientist 👩🔬 study pregnancy/stress/microbiome 🦠 help direct the OSU MSTP 👩🎓 Direct the OSU Soter Women’s Health Research Program 🚺 Have 4 kids 👯👯♀️ Married to the worlds tallest gynecologist! ™️
November 10, 2024 at 2:38 AM
Hiiii Fun facts in no particular order: I’m a NIH-funded physician scientist 👩🔬 study pregnancy/stress/microbiome 🦠 help direct the OSU MSTP 👩🎓 Direct the OSU Soter Women’s Health Research Program 🚺 Have 4 kids 👯👯♀️ Married to the worlds tallest gynecologist! ™️
Reposted by Fabian Rivera-Chávez
Reposted by Fabian Rivera-Chávez
Reposted by Fabian Rivera-Chávez
CMIC/SIMB registration is now open www.simbhq.org/cmic/attend/
For people interested in presenting, contributed submissions is August 30, 2024.
For people interested in presenting, contributed submissions is August 30, 2024.
August 20, 2024 at 5:57 PM
CMIC/SIMB registration is now open www.simbhq.org/cmic/attend/
For people interested in presenting, contributed submissions is August 30, 2024.
For people interested in presenting, contributed submissions is August 30, 2024.