* Origin and evolution of Bordetella pertussis 24th April

Impact of whooping cough vaccination revealed

Pathogen Genomics | Julian Parkhill

[Image: Science Photo Library]

* Plague bacteria evolution 21st April

A plague in your family

Pathogen Genomics | Nicholas Thomson

[Image: Wellcome Images]

* Sperm meets egg 16th April

Protein essential for fertilisation discovered

Cell surface signalling laboratory | Gavin Wright

[Image: Genome Research Limited]

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