Tiny bacilli seen on sputum Gram stain.
Its growth satellites around S. aureus on blood agar, and it grows well on chocolate 🍫 agar.
Pfieffer mistakenly thought it caused influenza when he discovered it, which is why “influenza” is in its name.
🧫🔬Haemophilus influenzae🔬🧫
🔬Classic Gram stain morphology🔬
🕷️Spidery gram-positive bacilli🕷️
Cutibacterium (Propionibacterium) acnes
📸 Pictured is a blood 🩸culture 🧫 that was contaminated with these bacteria from the skin. It can cause infection; C. acnes is a common cause of shoulder PJI.
🦠🦠 H3N2 subclade K is here 🦠 🦠
Kudos to the diagnostic microbiology team @CLEClinicLabs for standing up Influenza A whole genome sequencing just in time for the new flu.
https://t.co/i4EDcJIvGI
🦠 Second place at #IDWeek2025#BugBowl but first in our hearts 💙
The CCF Bug Bowl team absolutely crushed it today! Months of hard work, dedication, and infectious enthusiasm paid off — they made us so proud! #IDFellows#TeamCCF@IDWeekmtg
As we approach World Antimicrobial Awareness Week, at today’s micro plate rounds we learned about beta-lactamases—the enzymes driving beta-lactam resistance. A timely discussion on the mechanisms fueling AMR. #WAAW#AntimicrobialResistance#InfectiousDiseases@PathologyBurns
Here's the latest variant picture for the United States.
DeFLuQE variants are still dominant, but growth has ended and they are in sharp decline.
XEC.* grew strongly to around 27%.
🧵
Micro Plate rounds are always a highlight of the week! So grateful for the teaching and expertise our amazing microbiology team shares with us at CCF . Learning from the best to provide the best care!
@danrhoads@ClevelandClinic
This is the 5th year of the pandemic in the Let It Rip Kingdom of Sweden. Everyone is constantly reinfected with the immune damaging SARS-CoV-2.
Respiratory virus/bacteria infections like Rhino/Enterovirus, Adenovirus, Mycoplasma pneumoniae or Pertussis are skyrocketing.
🧵1/
Walking pneumonia is a bacterial infection caused by Mycoplasma pneumoniae.
Mycoplasma pneumoniae infections have been increasing in children since last spring and remain high, especially for kids ages 2-4 years, according to the CDC. https://t.co/EtzL7BP6Wj
🦠 🧠 Microbial Memory 🧠 🦠
Fun & brief write-up by @madelinerb2 on an understudied and clinically important part of microbiology that impacts small colony variants, mucoid phenotypes, heteroresistance, virulence, and more….
https://t.co/T9NAj1fXmh
@necrosignaling
@LinaMengPharmD I love the tables in this Livermore paper:
https://t.co/dwz8IboCSL
I agree this does not make good sense and retesting might be helpful. The cefoxitin resistance is not consistent with an ESBL. The ceftriaxone susceptibility is not consistent with AmpC.
How New Regulation of Laboratory-Developed Antimicrobial Susceptibility Tests Will Affect Infectious Diseases Clinical Practice
https://t.co/hqTMxbcusK
A thoughtful microbiology commentary by @Linoj_S in @ASMicrobiology@JClinMicro on the @US_FDA proposed LDT rule:
“A rule must also balance the potential negative impact to patient care with realistic safety risks for infectious disease diagnostics.”
https://t.co/1umt61ZZMM