Measles and smallpox, for example, are viruses; Streptococcus pneumoniae is a bacterium that causes a range of diseases, ...

Cases of whooping cough are climbing across the country this year, with about 6,600 already documented — nearly four times the number at the same point last year. Given the rise in cases, I wanted to ...

A tetanus shot lasts for 10 years, and adults should get a booster every 10 years. You need a tetanus booster shot sooner if you get a deep or dirty cut and it's been more than 5 years since your last ...