It is not because men are more prone to infections but it is because of the fact that 13% of men had unprotected sex with more than one partner in the last five years which only 7% of women presented such risky sexual behavior. Additionally, 50% of infected men showed no symptoms, and as much as 75% of women showed no symptoms of Chlamydia infection which is alarming considering the fact that the infected person might think he or she is not infected at all, and might spread the infection. Additionally, Chlamydia infection can cause infertility if not treated on time. The only way to prevent Chlamydia is by practicing safe sex (that includes condoms as a protection).
People should get tested regularly and if infected they should undergo course of antibiotics. Men are also less likely to get tested for Chlamydia infection. For example, more than 70% of men that were surveyed said that this was the first time they had been screened for a STI despite the fact of high infection rate, which 60% of women said the same. This information is also very worrying because most STDs do not have immediate symptoms but they might develop later or do not develop at all, and this additional threat to spreading the disease.