Nina's Notes: Brain Protozoa, Gut Bacteria, Influenza, and How to Tell if Your Surveillance Sucks

Welcome back to Nina's Notes.

Last week we covered tuberculosis, enteric protozoa, stakeholder analysis, and on-farm surveillance. 

Today, meet the wild protozoans of your brain and the bacteria in your belly. Get lost in the numerical maze of statistics and the analytical haze of animal-health surveillance evaluation. Then come back to life for influenza, the wiliest virus of them all.

Hot tip: Click on a photo to magnify and scroll through a high-resolution slide show. For PC users, right click and select "Open link in new tab" to magnify further.

Mind Control

(I mean, toxoplasmosis)

Enteric Bacteria

(to complement last week's dose of enteric protozoa)

Statistics: Comparing Two Means and Two Proportions

(gosh this stuff is dry)

Evaluation of Animal Health Surveillance

(you don't just gotta surveil, then you gotta evaluate how well you surveilled 😱)


(finally, back to some microbes!)

And more... Statistics

(but I'll spare you all and cut if off here)


  1. Yeah, I started to skim read through the statistics notes ...

    Regarding parasitic mind control's likely that cats and dogs owe their growing popularity in some modern cultures to the endorphin cascade elicited by their mimicking of human child behavior (which capitalizes on evolved neural pathways meant to move copies of our genes into the future). That pathway can, on rare occasion, lead to cross-species adoption in nature, which, when you think about it, is analogous to pet ownership. Cats and dogs are fed and housed in return for this tranquilizer effect.

    Clearly this relationship moves cat and dog genes into the future. It isn't clear what the impact is on the propagation of human genes. Cats and dogs are, by definition, either mutualists or parasites, either helping to move human genes into the future or not. : )


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