The Week in Numbers (to June 7th)

It’s up in the air

3 

The number of cases of influenza H5N1 mammal-to-human transmission in the US. All three cases were in farm workers, were mild, and have recovered. However, no one has yet bothered to report the cycle threshold to determine if the “positives” were contaminated or infectious.  

3 

Talking of cows, 3 are the billion tonnes of CO2 they emit each year, contr…