A citadel beset by germs

Watching Mariam Ghani’s Dis-Ease for New Scientist

There aren’t many laugh-out-loud moments in Mariam Ghani’s long documentary about our war on germs. The sight of two British colonial hunters in Ceylon bringing down a gigantic papier maché mosquito is a highlight.

Ghani intercuts public information films (a rich source of sometimes inadvertent comedy) with monster movies, documentaries, thrillers, newreel and histology lab footage to tell the story of an abiding medical metaphor: the body as citadel, beset by germs.

Dis-Ease, which began life as an artistic residency at the Wellcome Institute, is a visual feast, with a strong internal logic. Had it been left to stand on its own feet, then it might have borne comparison with Godfrey Reggio’s Koyaanisqatsi and Simon Pummell’s Bodysong: films which convey their ideas in purely visual terms.

But the Afghan-American photographer Ghani is as devoted to the power of words. Interviews and voice-overs abound. The result is a messy collision of two otherwise perfectly valid documentary styles.

There’s little in Dis-Ease’s narrative to take exception to. Humoral theory (in which the sick body falls out of internal balance) was a central principle in Western medicine from antiquity into the 19th century. It was eventually superseded by germ theory, in which the sick body is assailed by pathogens. Germ theory enabled globally transformative advances in public health, but it was most effectively conveyed through military metaphors, and these quickly acquired a life of their own. In its brief foray into the history of eugenics, Dis-Ease reveals, in stark terms, how “wars on disease” mutate into wars on groups of people.

A “war on disease” also preserves and accentuates social inequities, the prevailing assumption being that outbreaks spread from the developing south to the developed north, and the north then responds by deploying technological fixes in the opposite direction.

At its very founding in 1948, the World Health Organisation argued against this idea, and the eradication of smallpox in 1980 was achieved through international consensus, by funding primary health care across the globe. The attempted eradication of polio, begun in 1988, has been a deal more problematic, and the film argues that this is down to the developed world’s imposition by fiat of a very narrow medical brief, even as health care services in even the poorest countries were coming under pressure to privitise.

Ecosystems are being eroded, and zoonotic diseases are emerging with ever greater frequency. Increasingly robust and well-coördinated military responses to frightening outbreaks are understandable and they can, in the short term, be quite effective. For example: to criticise the way British and Sierra Leonean militaries intervened in Sierra Leone in 2014 to establish a National Ebola Response Centre would be to put ideology in the way of common sense.

Still, the film argues, such actions may worsen problems on the ground, since they absorb all the money and political will that might have been spent on public health necessities like housing and sanitation (and a note to Bond villians here: the surest way to trigger a global pandemic is to undermine the health of some small exposed population).

In interview, the sociologist Hannah Landecker points out that since adopting germ theory, we have been managing life with death. (Indeed, that is pretty much exactly what the word “antibiotic” means.) Knowing what we know now about the sheer complexity and vastness of the microbial world, we should now be looking to manage life with life, collaborating with the microbiome, ensuring health rather than combating disease.

What this means exactly is beyond the scope of Ghani’s film, and some of the gestures here towards a “one health” model of medicine — as when a hippy couple start repeating the refrain “life and death are one” — caused this reviewer some moral discomfort.

Anthropologists and sociologists dominate Dis-Ease’s discourse, making it a snapshot of what today’s generation of desk-bound academics think about disease. Many speak sense, though a special circle of Hell is being reserved for the one who, having read too much science fiction, glibly asserts that we can be cured “by becoming something else entirely”.

Annihilating France

Visiting Beautiful Science: Picturing Data, Inspiring Insight at the Folio Society Gallery, British Library, London, for new Scientist. 

In a small exhibition space built entirely of nooks and crannies, Johanna Kieniewicz, the British Library’s science curator, has created a surprising display.

Take for example, the opening image of a zoomable “tree of life” by James Rosindell, a biodiversity theorist from Imperial College London. It looks innocuous enough: it might belong in a children’s picture book. But the wealth of visual and textual information sewn into every scale of the map proves staggering. Life is vast.

Along with the intellectual surprises, there are some historical ones. What looks like a satellite image of global atmospheric circulation turns out, on closer inspection, to date from 1863: a print from The Weather Book by Robert FitzRoy (sometime captain of the Beagle and a visionary climatologist).

But perhaps the best-judged exhibit is also the least showy: a well-constructed video of interviews dealing with all the tricky questions about data visualisation in one place. Just how scientific is it? Is it really beautiful? Or distracting? And what about the underlying assumptions?

Having addressed these very necessary questions so economically, Beautiful Science can, and does, deliver on its title.

Scientific visualisation began, we learn, in the 17th century with the weather records of sea captains. Neatly rendered on an in-house computer, these records foreshadow NASA’s deliriously blue Perpetual Ocean video of 2011. This unforced pairing of historical and recent exhibits turns out to be a real strength.

Some early visualisations are predicated on ideas that turned out to be wrong. For example, the moon has little effect on the weather, and cholera is not spread by “bad air”. The data used to explore these ideas, being perfectly valid, can still reveal different insights to later observers.

This is the real strength of visualisation: it suggests interesting correlations without getting snarled up in language, which by its very nature tends to slip causation into every argument, whether you mean it to or not.

Because good visualisations give the viewer the chance to interpret things quite freely, Beautiful Science turns out to be, in the best sense, a playful exhibition. And toying around with the global epidemic and mobility model, I couldn’t for the life of me build a scenario that didn’t annihilate France.

Over all, covering climate change, public health and evolution, the exhibition gets the visitor asking the right sort of critical questions about how we communicate science.