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8th grader petri dishes - seeking help to identify colonies

I did a study of hand washing and hand sanitizer. Is anyone on the list willing to help me identify what grew from my unwashed and even washed hands? I attach three photos representing the yellow, white and orange growths found after several days on agar plates. Thank you so much in advance. Read More

Scientists, share your Zika virus reagents!

Today I learned that a number of investigators refuse to share their samples of Zika virus with other laboratories.

There are countless stories about scientists not sharing reagents because they want to be the first to make a discovery. This behavior allows them to publish first, secure more ... Read More

TWiP 103: Scroll down, please

The TWiP-scholars solve the case of the Housewife from Kolkata, discuss mutations in the IL17 gene associated with cerebral malaria, and hear a case presentation from guest Michael Libman.


Hosts:  Read More

Catching Ebola virus in the act of fusion

Since the first outbreak of Ebola virus in 1976, the frequency and scale of the deadly disease’s outbreaks have increased. The 2014-2015 outbreak in West Africa caused 11,000 deaths, precipitated panic at airports and emergency rooms worldwide, and renewed the urgency to find cures.


Kartik ... Read More

Foot and mouth disease virus: a global threat to agriculture

An important and sometimes overlooked issue of infrastructure is food security. American agriculture and related industries represent $1.5 trillion U.S. dollars and 17% of U.S. jobs. These workers provide the meat, eggs, dairy, and produce that many take for granted will end up on grocery shelve... Read More

TWiM #121: A plague of pathogens

Filmed live at ASM Biodefense 2016 with special guests: Rebekah Kading and Wyndham Lathem.


Fr... Read More

Zika virus and microcephaly

Three reports have been published that together make a compelling case that Zika virus is causing microcephaly in Brazil. Read More

What is lurking in your bread and beer?

There are countless examples of plant, animal and bacterial viruses that cause severe symptoms of disease, sometimes with considerable socio-economic consequences. Viruses of fungi, otherwise known as ‘mycoviruses’, infect many medically and commercially important fungi, including the brewers an... Read More

Changing the mindset of a pathogen-based vaccine

It’s hard to turn on the news at the moment and not hear about the latest emerging disease, Zika. The filovirus joins a cadre of infectious diseases spread by arthropod vectors – meaning the disease is passed between infected individuals via insect bites. A long list of microbes are spread this ... Read More

TWiV 375: Zika and you will find

Hosts: Vincent RacanielloAlan DoveRich Condit Read More

TWiP 102: Nursing eosinophils

The TWiPyzoites solve the case of the Uncommon Parasite, and discuss the role of eosinophils in promoting the growth of Trichinella in skeletal muscle.


Hosts:  Read More

E. coli, Salmonella, and Norovirus - oh my!

This upcoming Monday, Chipotle restaurants across the country will close as its employees discuss food safety and safe food handling. The restaurant was in the news throughout the last half of 2015, beginning with an outbreak of E. coli in Seattle (which was kept secret!), followed by another E.... Read More

The dual role of GALNT3 during influenza infection

Feeling under the weather? Are you congested, maybe having a hard time breathing, especially at night? Don’t worry – this is your body’s natural response to an infection. Mucus production is generally regarded as antimicrobial – it traps particles like virions before they can infect nearby host ... Read More

Zika from sex, the byway but not the highway

Can Zika virus be sexually transmitted? Perhaps in very rare cases, but the main mode of transmission is certainly via mosquitoes. That’s why I’ve shamelessly stolen a quote on this topic from Dr. William Schaffner of Vanderbilt University: Mosquito transmission is the highway, whereas sexual tr... Read More

MMP #9: Customizing phage by swapping tail genes to target specific pathogens

Host: Jeff Fox with special guest, Timothy Lu.


Lu, an Associate Professor of Biological Engineering and Electrical Engineering and Computer Science at Massachusetts Institute of Technology in Cambridge, Massachuse... Read More

TWiM #120: Snakes in trouble

Hosts: Vincent Racaniello and Elio Schaechter.


Vincent and Elio marvel in the finding that a phage tail-like struc... Read More

A chromosome in every cell: PprA funcitons in chromosome segregation after Deinococcus radiodurans irradiation

Exposure to reactive oxygen species, exposure to ionizing radiation, exposure to UV light – all of these are dangerous because of their potential to alter DNA sequences. Changes in DNA can affect a protein coding sequence, potentially influencing its function, but changes in regulatory regions c... Read More

TWiV 374: Discordance in B

Hosts: Vincent RacanielloDickson DespommierAlan Dove Read More

Zika virus

The rapid spread of Zika virus through the Americas, together with the association of infection with microcephaly and Guillain-Barré syndrome, have propelled this previously ignored virus into the limelight. What is this virus and where did it come from?
Read More

A growing concern: why whooping cough incidence may be increasing in a highly vaccinated population

News headlines highlighting an outbreak of a vaccine-preventable disease often leave readers shaking their heads. These diseases – measles, chickenpox, whooping cough – could have been prevented if only the infected children had been vaccinated. Right? Well, in the case of whooping cough, the si... Read More
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