Kieffer James Ferraris
@kiefferferraris.bsky.social
MD-MBA | Peds ID specialist |
Antimicrobial resistance & #abxstewardship | Interested on how adult IDs do it and how their practices can translate in Peds ID practice |
Sana kulay rosas ang bukas.🌷 #Marc0sMagnanakaw | Manila, The Philippines 🇵🇭
Antimicrobial resistance & #abxstewardship | Interested on how adult IDs do it and how their practices can translate in Peds ID practice |
Sana kulay rosas ang bukas.🌷 #Marc0sMagnanakaw | Manila, The Philippines 🇵🇭
Pinned
Hi! I’m Kieffer Ferraris, an early-career pediatric infectious diseases doctor from the Philippines.☺️
Interests include AMS and MDR bacterial infections, especially in peds practice. Curious also about how adult IDs approach these and how these can be applied to peds.
#IDSky #IDTwitter
Interests include AMS and MDR bacterial infections, especially in peds practice. Curious also about how adult IDs approach these and how these can be applied to peds.
#IDSky #IDTwitter
Common sites of acute osteomyelitis in kids. Even this skeleton of a child looks cute.
Source: PPPID 6/e, ed. by Long et al. #PedsIDSky
Source: PPPID 6/e, ed. by Long et al. #PedsIDSky
July 10, 2025 at 5:15 AM
Common sites of acute osteomyelitis in kids. Even this skeleton of a child looks cute.
Source: PPPID 6/e, ed. by Long et al. #PedsIDSky
Source: PPPID 6/e, ed. by Long et al. #PedsIDSky
Doing a repeat fellowship in Peds ID, this time at BC Children’s Hospital, Vancouver. First-day high!
July 3, 2025 at 4:22 AM
Doing a repeat fellowship in Peds ID, this time at BC Children’s Hospital, Vancouver. First-day high!
Late post: Last March 26, lectured to pedia dentistry residents of the Pediatric Dentistry Center Philippines. Tackled childhood infections relevant to dental practice—oral signs, infection control, & when to refer to Peds. Not everyday I get to teach future pediatric dentists! #PedsIDSky #PedsSky
June 29, 2025 at 7:01 AM
Late post: Last March 26, lectured to pedia dentistry residents of the Pediatric Dentistry Center Philippines. Tackled childhood infections relevant to dental practice—oral signs, infection control, & when to refer to Peds. Not everyday I get to teach future pediatric dentists! #PedsIDSky #PedsSky
Starting my 2nd Pediatric Infectious Diseases fellowship this July, this time at UBC/BCCH in Vancouver! 🇨🇦 #PedsIDSky
Reading this ATM: 😅
Reading this ATM: 😅
June 13, 2025 at 12:20 PM
Starting my 2nd Pediatric Infectious Diseases fellowship this July, this time at UBC/BCCH in Vancouver! 🇨🇦 #PedsIDSky
Reading this ATM: 😅
Reading this ATM: 😅
A 10month old was brought to the ER for irritability.
Xray showed this 👇
Coins or batteries?
REMEMBER:
Preventive pediatrics is a very important part of every pediatric visit!
Foreign body ingestion can be life-threatening
Xray showed this 👇
Coins or batteries?
REMEMBER:
Preventive pediatrics is a very important part of every pediatric visit!
Foreign body ingestion can be life-threatening
May 22, 2025 at 12:50 PM
Reposted by Kieffer James Ferraris
Words matter.
It’s time to retire the term oral “step-down.”
It implies inferiority of the oral route—and doesn’t align with stewardship principles.
Terms like IV to oral switch or oral transition better promote optimal antimicrobial stewardship.
What terms do you use—and why? #idsky
It’s time to retire the term oral “step-down.”
It implies inferiority of the oral route—and doesn’t align with stewardship principles.
Terms like IV to oral switch or oral transition better promote optimal antimicrobial stewardship.
What terms do you use—and why? #idsky
May 21, 2025 at 2:48 PM
Words matter.
It’s time to retire the term oral “step-down.”
It implies inferiority of the oral route—and doesn’t align with stewardship principles.
Terms like IV to oral switch or oral transition better promote optimal antimicrobial stewardship.
What terms do you use—and why? #idsky
It’s time to retire the term oral “step-down.”
It implies inferiority of the oral route—and doesn’t align with stewardship principles.
Terms like IV to oral switch or oral transition better promote optimal antimicrobial stewardship.
What terms do you use—and why? #idsky
Reposted by Kieffer James Ferraris
Happy to share this systematic review on antibiotic dosing in obesity! Thank you all the co-authors, it was great working together on this! #IDSky #PKPD #ESCMID
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
The pharmacokinetics of antibiotics in patients with obesity: a systematic review and consensus guidelines for dose adjustments
Obesity can cause physiological changes resulting in antibiotic pharmacokinetic alterations and suboptimal drug exposures. This systematic review aime…
www.sciencedirect.com
May 16, 2025 at 9:54 AM
Happy to share this systematic review on antibiotic dosing in obesity! Thank you all the co-authors, it was great working together on this! #IDSky #PKPD #ESCMID
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
Reposted by Kieffer James Ferraris
🆕💫Multicenter matched cohort study
Among 8492 patients hospitalized patients with community-acquired pneumonia, azithromycin was associated with a lower mortality and more hospital free days compared to doxycycline in combination with beta-lactams #idsky #EMIMCC
academic.oup.com/cid/article-...
Among 8492 patients hospitalized patients with community-acquired pneumonia, azithromycin was associated with a lower mortality and more hospital free days compared to doxycycline in combination with beta-lactams #idsky #EMIMCC
academic.oup.com/cid/article-...
Comparative effectiveness of azithromycin versus doxycycline in hospitalized patients with community acquired pneumonia treated with beta-lactams: A multicenter matched cohort study
academic.oup.com
May 16, 2025 at 8:56 PM
🆕💫Multicenter matched cohort study
Among 8492 patients hospitalized patients with community-acquired pneumonia, azithromycin was associated with a lower mortality and more hospital free days compared to doxycycline in combination with beta-lactams #idsky #EMIMCC
academic.oup.com/cid/article-...
Among 8492 patients hospitalized patients with community-acquired pneumonia, azithromycin was associated with a lower mortality and more hospital free days compared to doxycycline in combination with beta-lactams #idsky #EMIMCC
academic.oup.com/cid/article-...
Reposted by Kieffer James Ferraris
I wrote about popes, condoms, and the Catholic Church’s long, complicated relationship with sexual health. From abstinence-only messaging during the HIV crisis to quiet progress under Francis. I had fun with this one hope you enjoy reading it.
bktitanji.substack.com/p/habemus-pa...
#HabemusPapam
bktitanji.substack.com/p/habemus-pa...
#HabemusPapam
Habemus Papam: But What’s His Stance on Condoms?
As an infectious diseases doctor, I can’t help but wonder what Pope Leo thinks about latex
bktitanji.substack.com
May 10, 2025 at 4:36 PM
I wrote about popes, condoms, and the Catholic Church’s long, complicated relationship with sexual health. From abstinence-only messaging during the HIV crisis to quiet progress under Francis. I had fun with this one hope you enjoy reading it.
bktitanji.substack.com/p/habemus-pa...
#HabemusPapam
bktitanji.substack.com/p/habemus-pa...
#HabemusPapam
Vaccines can be given at birth up to adulthood as VPDs do not choose their target. Update your immunization with your MD or with your local health center.
This infographic is brought to you by the Pediatric Infectious Disease Society of the Philippines (PIDSP).
#WorldImmunizationWeek #WIW2025 #PIDSP
This infographic is brought to you by the Pediatric Infectious Disease Society of the Philippines (PIDSP).
#WorldImmunizationWeek #WIW2025 #PIDSP
April 29, 2025 at 2:16 PM
Vaccines can be given at birth up to adulthood as VPDs do not choose their target. Update your immunization with your MD or with your local health center.
This infographic is brought to you by the Pediatric Infectious Disease Society of the Philippines (PIDSP).
#WorldImmunizationWeek #WIW2025 #PIDSP
This infographic is brought to you by the Pediatric Infectious Disease Society of the Philippines (PIDSP).
#WorldImmunizationWeek #WIW2025 #PIDSP
Reposted by Kieffer James Ferraris
The new WHO guideline recommend using the 7-sign IMCI algorithm to detect serious infections in infants, simplified antibiotics when referral isn’t possible, stronger referral systems, and rational antibiotic use to fight #AMR and improve newborn care
#InfectiousDisease
www.who.int/indonesia/ne...
#InfectiousDisease
www.who.int/indonesia/ne...
WHO issues updated guidance on managing serious bacterial infections in infants
The World Health Organization (WHO) has released updated global recommendations to improve diagnosis and treatment of serious bacterial infections (SBIs) in young infants aged 0–59 days, including sep...
www.who.int
April 22, 2025 at 3:41 AM
The new WHO guideline recommend using the 7-sign IMCI algorithm to detect serious infections in infants, simplified antibiotics when referral isn’t possible, stronger referral systems, and rational antibiotic use to fight #AMR and improve newborn care
#InfectiousDisease
www.who.int/indonesia/ne...
#InfectiousDisease
www.who.int/indonesia/ne...
Reposted by Kieffer James Ferraris
RFK Jr. says he'll find out the cause of autism. I wanna know the cause of RFK Jr.
April 19, 2025 at 9:11 PM
RFK Jr. says he'll find out the cause of autism. I wanna know the cause of RFK Jr.
Reposted by Kieffer James Ferraris
Paenibacillus dendritiformis is captivating. Just look at that colony morphology! This "social" microbe forms dynamic communities that behave like a multi-cellular organism; with specialized cell differentiation, communication and linguistics. It reminds us what we can achieve when we work together.
April 18, 2025 at 2:03 PM
Paenibacillus dendritiformis is captivating. Just look at that colony morphology! This "social" microbe forms dynamic communities that behave like a multi-cellular organism; with specialized cell differentiation, communication and linguistics. It reminds us what we can achieve when we work together.
Reposted by Kieffer James Ferraris
This doctor tried to justify practicing medicine while infected with measles by saying he only treated patients who had measles.
Measles has a reproductive value of 12. It’s airborne. Even if you “only” saw patients with measles, you likely infected multiple others.
This should be criminal
Measles has a reproductive value of 12. It’s airborne. Even if you “only” saw patients with measles, you likely infected multiple others.
This should be criminal
Video shows doctor with measles treating kids. RFK Jr later praised him as an ‘extraordinary’ healer
A video shows a Texas doctor, who has been treating children in a measles outbreak, with a measles rash on his face in a clinic while caring for patients a week before he met with Health Secretary Rob...
apnews.com
April 19, 2025 at 8:16 PM
This doctor tried to justify practicing medicine while infected with measles by saying he only treated patients who had measles.
Measles has a reproductive value of 12. It’s airborne. Even if you “only” saw patients with measles, you likely infected multiple others.
This should be criminal
Measles has a reproductive value of 12. It’s airborne. Even if you “only” saw patients with measles, you likely infected multiple others.
This should be criminal
Reposted by Kieffer James Ferraris
Useful summary of inducible AmpC - strength of inducement and susceptibility to hydrolysis #escmidglobal
April 14, 2025 at 8:33 AM
Useful summary of inducible AmpC - strength of inducement and susceptibility to hydrolysis #escmidglobal
Reposted by Kieffer James Ferraris
Starting Sunday at #ESCMID2025 #ESCMIDglobal debating 'Proxy indicators: bridging the gap between #AMR surveillance and #antimicrobialstewardship #AMS
Finding a way to tie quantity metrics to appropriateness of prescription
A start to #AMS Sunday according to @dianeashiru.bsky.social
Finding a way to tie quantity metrics to appropriateness of prescription
A start to #AMS Sunday according to @dianeashiru.bsky.social
April 13, 2025 at 6:54 AM
Starting Sunday at #ESCMID2025 #ESCMIDglobal debating 'Proxy indicators: bridging the gap between #AMR surveillance and #antimicrobialstewardship #AMS
Finding a way to tie quantity metrics to appropriateness of prescription
A start to #AMS Sunday according to @dianeashiru.bsky.social
Finding a way to tie quantity metrics to appropriateness of prescription
A start to #AMS Sunday according to @dianeashiru.bsky.social
Reposted by Kieffer James Ferraris
Critical talk to think about moving from #AMR surveillance + antibiotic use data
⬇️
Stewardship initiatives #AMS
Talk from Mark de Boer on bridging the gap!
#ESCMIDglobal #ESCMID2025
⬇️
Stewardship initiatives #AMS
Talk from Mark de Boer on bridging the gap!
#ESCMIDglobal #ESCMID2025
April 13, 2025 at 7:46 AM
Critical talk to think about moving from #AMR surveillance + antibiotic use data
⬇️
Stewardship initiatives #AMS
Talk from Mark de Boer on bridging the gap!
#ESCMIDglobal #ESCMID2025
⬇️
Stewardship initiatives #AMS
Talk from Mark de Boer on bridging the gap!
#ESCMIDglobal #ESCMID2025
Reposted by Kieffer James Ferraris
#NeoIPC data presented at #ESCMIDGlobal shows how drug-resistant bacteria colonise the guts of high-risk infants in #NICUs 🇨🇭🇬🇷.
Urgent need to boost #IPC to fight AMR, which is the focus of the Penta-sponsored #NeoDeco study.
View presentation slides ➡️ neoipc.org/wp-content/u...
More ➡️ neoipc.org
Urgent need to boost #IPC to fight AMR, which is the focus of the Penta-sponsored #NeoDeco study.
View presentation slides ➡️ neoipc.org/wp-content/u...
More ➡️ neoipc.org
April 16, 2025 at 1:26 PM
#NeoIPC data presented at #ESCMIDGlobal shows how drug-resistant bacteria colonise the guts of high-risk infants in #NICUs 🇨🇭🇬🇷.
Urgent need to boost #IPC to fight AMR, which is the focus of the Penta-sponsored #NeoDeco study.
View presentation slides ➡️ neoipc.org/wp-content/u...
More ➡️ neoipc.org
Urgent need to boost #IPC to fight AMR, which is the focus of the Penta-sponsored #NeoDeco study.
View presentation slides ➡️ neoipc.org/wp-content/u...
More ➡️ neoipc.org
Reposted by Kieffer James Ferraris
🫁 Despite previous global declines, pulmonary #tuberculosis (TB) is on the rise again. A new #AI-powered #lung #ultrasound presented at the @escmid.bsky.social #ESCMIDGlobal congress shows promise in improving diagnostic performance of #TB.
POCT AI-guided lung ultrasound boosts tuberculosis diagnosis
A pioneering study presented at ESCMID Global 2025 has demonstrated that an AI-powered lung ultrasound outperforms human experts by 9% in diagnosing pulmonary tuberculosis (TB).
healthcare-in-europe.com
April 17, 2025 at 10:30 AM
🫁 Despite previous global declines, pulmonary #tuberculosis (TB) is on the rise again. A new #AI-powered #lung #ultrasound presented at the @escmid.bsky.social #ESCMIDGlobal congress shows promise in improving diagnostic performance of #TB.
Reposted by Kieffer James Ferraris
To tackle antibiotic resistance (#AMR) in newborns, especially premature babies in #NICUs, researchers explored the best trial design for studying #IPC.
See what this simulation study, based on #NeoIPC data and presented at #ESCMIDGlobal, suggests 👇
View poster: neoipc.org/wp-content/u...
See what this simulation study, based on #NeoIPC data and presented at #ESCMIDGlobal, suggests 👇
View poster: neoipc.org/wp-content/u...
April 18, 2025 at 2:35 PM
To tackle antibiotic resistance (#AMR) in newborns, especially premature babies in #NICUs, researchers explored the best trial design for studying #IPC.
See what this simulation study, based on #NeoIPC data and presented at #ESCMIDGlobal, suggests 👇
View poster: neoipc.org/wp-content/u...
See what this simulation study, based on #NeoIPC data and presented at #ESCMIDGlobal, suggests 👇
View poster: neoipc.org/wp-content/u...
Reposted by Kieffer James Ferraris
Learning so much from @adamjkucharski.bsky.social’s “Proof”—for example, I certainly didn’t know before that Francis Galton published a Nature paper on how to cut a cake so that it doesn’t dry out.
www.nature.com/articles/075...
www.nature.com/articles/075...
April 19, 2025 at 4:29 AM
Learning so much from @adamjkucharski.bsky.social’s “Proof”—for example, I certainly didn’t know before that Francis Galton published a Nature paper on how to cut a cake so that it doesn’t dry out.
www.nature.com/articles/075...
www.nature.com/articles/075...
Reposted by Kieffer James Ferraris
The SNAP trial may finally resolve some of the longest-running debates in SAB management (cefazolin vs semi-synthetic PCN? Is PCN really active vs PSSA?).
Huge congrats to Drs. Joshua Davis, Steven Tong, & the global team who made this ambitious trial happen. #IDSky blogs.jwatch.org/hiv-id-obser...
Huge congrats to Drs. Joshua Davis, Steven Tong, & the global team who made this ambitious trial happen. #IDSky blogs.jwatch.org/hiv-id-obser...
SNAP Trial Helps Resolve Long-Running Controversies Over Management of Staph Bacteremia
For those who do hospital-based patient care, the significance of Staphylococcus aureus bacteremia (SAB) cannot be overstated. It’s one of the most frequent reasons for infectious disease consultation...
blogs.jwatch.org
April 18, 2025 at 8:35 PM
The SNAP trial may finally resolve some of the longest-running debates in SAB management (cefazolin vs semi-synthetic PCN? Is PCN really active vs PSSA?).
Huge congrats to Drs. Joshua Davis, Steven Tong, & the global team who made this ambitious trial happen. #IDSky blogs.jwatch.org/hiv-id-obser...
Huge congrats to Drs. Joshua Davis, Steven Tong, & the global team who made this ambitious trial happen. #IDSky blogs.jwatch.org/hiv-id-obser...
Reposted by Kieffer James Ferraris
The most anticipated RCT in ID
🔥SNAP RCT🔥The largest RCT 2 date in SA bactermia
N:1341
Cefazolin Vs ASPs ((flu)cloxacillin) for MSSA bacteremia
Cefazolin is non-inferior (90d mortality)& less AKI than ASPs
A practice-changer RCT that must change the guidelines
#ESCMIDGlobal #IDSky
🔥SNAP RCT🔥The largest RCT 2 date in SA bactermia
N:1341
Cefazolin Vs ASPs ((flu)cloxacillin) for MSSA bacteremia
Cefazolin is non-inferior (90d mortality)& less AKI than ASPs
A practice-changer RCT that must change the guidelines
#ESCMIDGlobal #IDSky
April 12, 2025 at 3:09 PM
The most anticipated RCT in ID
🔥SNAP RCT🔥The largest RCT 2 date in SA bactermia
N:1341
Cefazolin Vs ASPs ((flu)cloxacillin) for MSSA bacteremia
Cefazolin is non-inferior (90d mortality)& less AKI than ASPs
A practice-changer RCT that must change the guidelines
#ESCMIDGlobal #IDSky
🔥SNAP RCT🔥The largest RCT 2 date in SA bactermia
N:1341
Cefazolin Vs ASPs ((flu)cloxacillin) for MSSA bacteremia
Cefazolin is non-inferior (90d mortality)& less AKI than ASPs
A practice-changer RCT that must change the guidelines
#ESCMIDGlobal #IDSky
Reposted by Kieffer James Ferraris
Just made a custom feed that pulls in a wide array of hashtags being used at ESCMID Global 2025
May have a few minutes delay, but contains posts with
#ESCMIDGlobal #ESCMIDGlobal2025 #ESCMID2025 #ECCMID2025
Feel free to pin it to your timelines. Hope it's helpful #IDSky
bsky.app/profile/did:...
May have a few minutes delay, but contains posts with
#ESCMIDGlobal #ESCMIDGlobal2025 #ESCMID2025 #ECCMID2025
Feel free to pin it to your timelines. Hope it's helpful #IDSky
bsky.app/profile/did:...
April 12, 2025 at 1:51 PM
Just made a custom feed that pulls in a wide array of hashtags being used at ESCMID Global 2025
May have a few minutes delay, but contains posts with
#ESCMIDGlobal #ESCMIDGlobal2025 #ESCMID2025 #ECCMID2025
Feel free to pin it to your timelines. Hope it's helpful #IDSky
bsky.app/profile/did:...
May have a few minutes delay, but contains posts with
#ESCMIDGlobal #ESCMIDGlobal2025 #ESCMID2025 #ECCMID2025
Feel free to pin it to your timelines. Hope it's helpful #IDSky
bsky.app/profile/did:...