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TWiP 82 letters

Allan writes:

Dear Vincent, Dickson and Daniel,

I like your idea of a TWIP coffee mug prize (or maybe a mug discount).

In this second case study you presented, the present symptoms are pretty vague, but his history is interesting. Also since with ... Read More

TWiP 91 letters


Heather writes:

Dear Dr.s R, D & G,

I really hate to criticize learned professors, especially my elders. I suspect I may be being overly - sensitive or perhaps it is a cultural difference. However, the "over-talking" is decreasing the qualit... Read More

Chromobacterium violaceum, Staphylococcus aureus

Created by: Michelle Vu, Research Associate, BS Microbiology
Isolate: Chromobacterium violaceum, Staphylococcus aureus
Agar: Blood Agar
Incubation Conditions: 24 hours at 37C + 24 hours at Room Temperature

Pictured is Chromobacterium violaceum and Staphylococcus aureus shaped in a valentin... Read More

Infection with multiple HIV-1 variants leads to poorer clinical outcomes

HIV-1 infection with multiple founder variants points to poorer clinical outcomes than infection with a single variant, according to a paper published today in the journal Nature Medicine. Read More

TWiP 79 letters

Jesse writes:

Doctors TWiP,

I came across this paper and thought it sounded interesting for a discussion on TWiP:

Colonisation resistance in the sand fly gut: Leishmania protects Lutzomyia longipalpis from bacterial infection
Read More

TWiM 100 Letters

Matt Daugherty writes:

I just listened to the latest TWiM. Thanks for covering our horizontal gene transfer paper! It was great to hear you all talk about it and give your thoughts.

With regards to the selective pressure for retention of the Dae’s in genomes o... Read More


New research shows that epidemics of dengue—caused by a mosquito-borne virus—across southeast Asia appear to be linked to the abnormally high temperatures brought by the El Niño weather phenomenon. Read More

TWiV 321: aTRIP and a pause

Paul Duprex joins the TWiV team to discuss the current moratorium on viral research to alter transmission, range and resistance, infectivity and immunity, and pathogenesis.

Hosts: Vincent Racaniel... Read More

What do we breathe?

Results of analysing air by Using Merck Millipore Mas 100 Eco Air Sampler. Here i used DRBC agar and i got some molds. It was 100 lt volume. there is no yeast but we can see clearly molds. Read More

Love and war between kingdoms

Candida albicans and Pseudomona aeruginosa growing on YPD. Read More

Persisters - Small step towards Antibiotic resistance

Chromobacterium violaceum is a gram negative bacterium known to produce a natural antibiotic violacein which has other additional properties as well.
Here I was testing the MIC for a range of antibiotics and found a amazing result wherein i could clearly see "persisters" which will at a later s... Read More

TWiM 103 Letters

Bailey writes:

Hey Vincent, Elio, Michele and Michael!

I'm a first year microbiology graduate student at UC Berkeley and an avid listener of twim. Elio's snippet from the most recent podcast reminded me of a personal anecdote that might be useful to share with... Read More


A Time Lord needs his TARDIS to embark on fantastic discoveries. These LB agar plates contain a colorless reagent called X-gal, which is the sugar galactose linked to a dark blue dye. Some microbes can synthesize an enzyme (β-galactosidase) that snips the X-gal in two, releasing the blue color a... Read More

Picornavirus Overview Video - SketchyMicro USMLE Microbiology Review

The Picornavirus Overview Video is the first video in our virus package. It introduces the Picornivirus family, covering general characteristics. More detail about each virus within the family is covered in those virus' individual videos. Read More

3D printing brings new feel to microbes

UK bioscience funders BBSRC and scientists from Oxford Brookes University teamed-up to run Giant Germs – an event tailored specifically to the blind and visually impaired. The day allowed visitors to discover the microscopic world of microbes for the very first time thanks to 3D printing technol... Read More

Antitumor Drug Can be produced in Laboratory Now

BOC Sciences-Scientists have successfully found a way for producing an important cancer drug ingredient in lab recently, which may bring a decrease to the cost of the related drug as its material could only be got from a plant which rarely exists. Read More

Agar Art Contest 2015

This picture depicts that microbes too can add colours to life. As the beginning of a New Year adds colour to life. This agar art shows how microbes like serratia marcescens, Pseudomonas aeruginosa, Staphylococcus Citrus add to happiness of new year and too add colours to life. Read More

What could this colony be ?

Dear Members,

I happen to come across some colonies (I thinks its a bacterium) on some left over yoghurt and was wondering if someone could help me to identify it.

About the colonies.

I had left some yoghurt in the fridge for some days. I noticed that the yoghurt surface has been stain... Read More

Streptomyces albus

Streptomycetes are a member actinomycete family. Streptomycetes are usually found in soil and are important decomposers. They are aerobic, gram-positive, filamentous rods that create branching hyphae. They also produce more than half of the world's antibiotics, and are therefore very valuable in... Read More

TWiM 93 Letters

David writes:

Why not eat locusts? Assuming you can find any fuel to cook em, and apart from deficiency illnesses, I've always wondered why people didn't hunker down and harvest them for emergency food. Did original peoples endure swarms by eating them? Did Euro food ... Read More

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