http://www.mdpi.com/2076-2607/4/3/28/pdf

There are currently nine families in the order Chlamydiales. Most are familiar with the family that includes trachomatis (the most commonly reported STD) and C. pneumonia (spreads by air). The other eight families are Chlamydia-Like Organisma (CLO’s). Many of these CLO’s are found in environmental samples such as water, soil, and various animals including mammals, reptiles, fish and our common enemy, the tick, along with other arthropods.

Scientists do not yet understand how this affects human health; however, associations have been made between CLO’s and tubal factor infertility, adverse pregnancy outcome, lower respiratory tract infections, and pneumonia.

The following abstract shows that ticks can carry CLO’s as well as borrelia (the causative agent of Lyme Disease), Babesia, Bartonella, Anaplasma, B. miyamotoi, tick-borne encephalitis, Mycoplasma, and more.
http://doi.org/10.3390/microorganisms4030028

Abstract
Ticks carry several human pathogenic microbes including Borreliae and Flavivirus causing tick-born encephalitis. Ticks can also carry DNA of Chlamydia-like organisms (CLOs). The purpose of this study was to investigate the occurrence of CLOs in ticks and skin biopsies taken from individuals with suspected tick bite.

DNA from CLOs was detected by pan-Chlamydiales-PCR in 40% of adult ticks from southwestern Finland. The estimated minimal infection rate for nymphs and larvae (studied in pools) was 6% and 2%, respectively. For the first time, we show CLO DNA also in human skin as 68% of all skin biopsies studied contained CLO DNA as determined through pan-Chlamydiales-PCR.

Sequence analyses based on the 16S rRNA gene fragment indicated that the sequences detected in ticks were heterogeneous, representing various CLO families; whereas the majority of the sequences from human skin remained “unclassified Chlamydiales” and might represent a new family-level lineage. CLO sequences detected in four skin biopsies were most closely related to “uncultured Chlamydial bacterium clones from Ixodes ricinus ticks” and two of them were very similar to CLO sequences from Finnish ticks.

These results suggest that CLO DNA is present in human skin; ticks carry CLOs and could potentially transmit CLOs to humans.

Two other studies have come to the same conclusion: that there exists a high prevalence and diversity of Chlamydiales DNA in ticks and the very real possibility of human infection.  https://www.ncbi.nlm.nih.gov/pubmed/24698831 and https://www.ncbi.nlm.nih.gov/pubmed/26386066

All of this continues to demonstrate why Lyme Disease isn’t typically just Lyme Disease but MSIDS, multi systemic infectious disease syndrome, a literal menagerie of pathogens invading the human host making our cases extremely complex and difficult.

Worth mentioning again is the fact spirochetes have been detected in semen and vaginal secretions demonstrating that MSIDS is an STD and can be passed congenitally.

http://afmr.org/Western/
These narratives substantiate a study presented at the annual Western Regional Meeting of the American Federation for Medical Research, with an abstract published in the January issue of the Journal of Investigative Medicine, in which researchers tested semen samples and vaginal secretions from three groups: controls without evidence of Lyme, random subjects who tested positive for Lyme, and married heterosexual couples engaging in unprotected sex who tested positive for Lyme. The results were clear: all of the controls tested negative in semen and vaginal secretions. All women with Lyme tested positive in vaginal secretions, while about half of the men tested positive in semen. One of the heterosexual couples showed identical strains. Internist Raphael Stricker stated, “There is always some risk of getting Lyme Disease from a tickbite in the woods, but there may be a bigger risk of getting Lyme Disease in the bedroom.” Reference: The Journal of Investigative Medicine 2014;62:280-281.

http://www.scientificamerican.com/article/mothers-may-pass-lyme-disease-to-children-in-the-womb/
“Scientists have long suspected, however, that the spiral-shaped Lyme bacteria, Borrelia burgoferi, can be passed gestationally, since other “spirochetes” – most notably the syphilis bacteria – are known to be transmitted in the womb, causing a range of birth defects.”