Colour-blind no more
Two formerly colour-blind squirrel monkeys can now see in full colour. The animals were injected in the eye with a harmless virus carrying a gene they lacked. This enabled them to make “long-wavelength opsin”, a pigment needed to distinguish red from green (Nature, ).
Protect the mothers
If pregnant women catch swine flu, their health is at particular risk, so mothers-to-be are the subjects in the latest , conducted by the US National Institute of Allergy and Infectious Diseases. The 120 receiving the vaccine will be monitored for adverse effects, whether…
