It is estimated that 1% - 3% of blacklegged ticks (I. scapularis) in the northeastern United States may be infected with Powassan virus (POWV), lineage II, otherwise known as the deer tick virus (DTV).
In 2013, the first cases of Borrelia miyamotoi in North America were reported in the northeastern United States. Cases have also been described in Russia, the Netherlands, Germany, Japan and the upper Midwestern United States. Ixodes ticks infected with B. miyamotoi have been found in other regions including several Canadian provinces, according to a study published in the Canadian Medical Association Journal by Kadkhoda and colleagues.  But human cases of the disease have yet to be identified in this region.
Five tick-borne pathogens were recently identified in New York and Connecticut using a multiplex real-time reverse transcription-PCR assay. The assay was able to simultaneously detect and differentiate Anaplasma phagocytophilum, Borrelia burgdorferi, Borrelia miyamotoi, Babesia microti, and the Powassan virus in I. scapularis (black-legged) ticks.
Did you know the cat you may be cuddling with on your couch every evening could be infected with a host of tick-borne diseases? Unlike our canine friends, cats are typically not symptomatic when it comes to such diseases. But as researchers have found, that doesn’t mean they are free from disease.
Lyme disease patients oftentimes suffer from ongoing illness following treatment. A study by Bechtold and colleagues found that 31% of patients remained in significant pain for months after a three-week course of doxycycline to treat an EM rash.  Six percent of their patients developed post-treatment Lyme disease syndrome (PTLDS). Now, a new case report examines the effectiveness of intravenous ketamine on managing pain in a patient with post-treatment Lyme disease syndrome.
There are many documented cases of patients with Lyme disease suffering from suicidal or homicidal tendencies. In the journal Neuropsychiatric Disease and Treatment, psychiatrist Robert Bransfield, MD, expresses his concern for this under-recognized patient population. “Suicidal and homicidal tendencies after Lyme disease are clearly an ignored problem that deserves greater attention.” 
Borrelia burgdorferi sensu lato (Bb s.l.), the causative agent of Lyme disease, was first reported in 2013 in Ixodes aragaoi ticks in Uruguayan Pampa and has since been found in Argentina and Chile. Now, a new study reports the results of a state surveillance program investigating the presence of Bb in Ixodes spp ticks in Brazilian Pampa.
In a 2017 issue of the American Journal of Medicine , Dr. Rosalie Greenberg from Overlook Hospital in Summit, New Jersey, responds to an article published by Drs. Shapiro, Baker and Wormser entitled “False and Misleading Information about Lyme Disease.” 
Twelve out of 28 children with Lyme disease evaluated at an academic medical center in the Netherlands remained ill with post-treatment Lyme borreliosis syndrome (PTLBS). These 12 children presented with various complaints, including fatigue, general malaise and pain. There were no other medical explanations for their complaints and all were positive for Borrelia burgdorferi sl based on two-tier testing of C6-Lyme enzyme immunoassay (EIA) and IgG/IgM immunoblots. 
Babesia, a severe, potentially life threatening illness, has been identified in as many as 40% of individuals with Lyme disease in the North Eastern USA. The clinical spectrum now includes what has been described as “asymptomatic.” This is particularly concerning given that the infection can be acquired not only through a tick bite but through blood transfusions.