VACCINE NEEDED Researchers reported promising results in a test in humans for a vaccine against chlamydia, which causes around 131 million new infections worldwide each year.
MarianVejcik/iStock/Getty Images Plus
VACCINE NEEDED Researchers reported promising results in a test in humans for a vaccine against chlamydia, which causes around 131 million new infections worldwide each year.
MarianVejcik/iStock/Getty Images Plus