Lyme disease can cause a variety of complaints in patients. Laboratory tests for the disease can support medical practitioners in making a diagnosis but are not necessarily conclusive.

Without global agreement on the use of HFCs, their contribution to the greenhouse effect may increase sharply to 10 percent of that of CO2 by 2050. The current contribution is less than 1 percent.

The Netherlands is the first country where the burden of disease due to Lyme disease has been determined.

The number of clients tested for sexually transmitted infections (STIs) at Dutch STI clinics has increased since 2004.

Hydrofluorocarbons (HFCs) are potent greenhouse gases used in refrigerators and air conditioners and are released primarily at the end of the life-span of these products.

Routine screening for anorectal chlamydia among HIV-positive men who have sex with men (MSM) could avert further spread of chlamydia and HIV in the total MSM population.

Until 2003, Lymphogranuloma venereum (LGV), an aggressive form of chlamydia, was considered to be a rare tropical disease, endemic to Africa, Asia and the Caribbean.

In 2012, the number of new consultations at Sexually Transmitted Infections (STI) clinics in the Netherlands increased by 7% over the previous year.