BioBlog

A new study on the heritability of autism spectrum disorder

Alison Campbell Jul 25, 2019

Science has known for a while now that there is a strong genetic component in autism spectrum disorders (ASD), although those opposed to vaccination tend to deny this. (David Gorski points this out in his commentary on this new 2019 paper.) In this paper, Bai et al. cite data from a meta-analysis of twin studies that estimated the heritability … Read More

Plague enthusiasts: do they assume no-one checks?

Alison Campbell Jul 19, 2019

One of the things that strikes me about the commenters actively opposing vaccinations – e.g. on the many news stories about NZ’s measles outbreak – is their continued readiness to state and repeat mistruths and inaccuracies. You see it all the time, and I have to wonder – is there just this underlying assumption that no-one will actually check? … Read More

What happened to the Neanderthals?

Alison Campbell Jun 12, 2019

One of the questions students often ask, when we’re discussing human evolution, is “what happened to the Neanderthals?” After all, this was a large-brained species closely related to our own, with some fairly complex tool technologies and the ability to survive (and thrive) in harsh environmental conditions. Yet they appear to have been replaced by anatomically-modern humans (in Europe, anyway) … Read More

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Measles infection and immune amnesia

Alison Campbell Jun 04, 2019

Measles infection has a couple of longer-term sequelae. One, SSPE, is thankfully rare (although for infants with measles the odds of subsequently developing SSPE are considerably higher than for other age groups). The other, “immune amnesia”, is strongly associated with having had measles, though this doesn’t stop those opposed to vaccination claiming otherwise. In 2015, Mina et al. published … Read More

The package insert: misunderstood and misrepresented

Alison Campbell May 09, 2019

UNICEF estimates that in the period 2010-2017, 169 million children missed their first dose of the measles vaccine – that’s around 21 million children each year. Sadly, this has simply set the conditions for the measles outbreaks we’re seeing around the world, in high- and low-income countries alike. In the first three months of 2019, more than 110,000 measles … Read More

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Measles infection is not a cure for cancer

Alison Campbell Apr 30, 2019

We’re continuing to hear of new measles cases in New Zealand, most recently in this Stuff story about 4 new cases in Auckland (with the possibility that up to 1600 people may have been exposed). One of those ill with the disease is a 10-month-old child, too young to have received her first dose of the MMR vaccine. Completely predictably, … Read More

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