Igor Koralnik, MD

Frontiers | A cross-continental comparative analysis of the neurological manifestations of Long COVID ObjectiveTo compare demographics, comorbidities, neurologic symptoms, quality of life, and cognitive outcomes among adult individuals with neurologic manifes...

Great teamwork with collaborators in Nigeria, Colombia and India showing important differences in the Neurologic manifestations of Long COVID across continents: congrats to all!
@nmneurology.bsky.social @aanmember.bsky.social
www.frontiersin.org/journals/hum...

Congratulations to Northwestern Medical Student Grace Lank for her publication in BMC Neurology about a novel symptom tracker App used to characterize Long COVID recovery patterns.
@nmneurology.bsky.social @aanmember.bsky.social
pubmed.ncbi.nlm.nih.gov/41521322/

Neuropsychiatric manifestations of Long COVID in India: a persistent problem 2.5 years after disease onset - PubMed Our study highlights differences in demographics and clinical presentation of Long COVID between post-hospitalization and non-hospitalized individuals in India. The high frequency of neurologic manifestations 2.5 years after disease onset underscores the need for early detection and targeted interve …

Congratulations to Dr. Anurag Singh and colleagues from NIMS University in Jaipur, Rajasthan, for their paper on Neuropsychiatric manifestations of Long COVID in India
pubmed.ncbi.nlm.nih.gov/413123 @nmneurology.bsky.social @aanmember.bsky.social

Long COVID Research in Latin America with Carolina Hurtado Montoya, MD, PhD Creating an international research team, virtually, is a new path for many in global health and Carolina Hurtado Montoya, MD, PhD, is leading this charge in Latin America through long COVID research. ...

Congratulations to our collaborator Dr. Carolina Hurtado Montoya from CES University in Medellin, Colombia, for her podcast about her research on the neurologic manifestations of Long COVID and their treatment . A model for Latin America ! www.globalhealth.northwestern.edu/events/podca...

Five years later: no short answers for Long COVID - PubMed Five years later: no short answers for Long COVID

Appreciation for @geroscience.bsky.social for publishing our editorial pubmed.ncbi.nlm.nih.gov/40875136/ where we highlight the plight of people affected by Long COVID and our efforts to care for them while researching the root cause of this syndrome @nmneurology.bsky.social

Northwestern Medicine research finding opens the door to a viral link to Parkinson’s disease The usually harmless Human Pegivirus has been found in brain samples from Parkinson’s patients. Researchers say this is the first time it’s been found in brain tissue.

Nice job by the @chicagotribune.com for their article about our study on a potential viral link to Parkinson's Disease, led by Dr. Barbara Hanson in my lab. This opens a new field of investigation about the role of Human Pegivirus in this devastating disease.
www.chicagotribune.com/2025/07/16/n...

Thank you to WGN-Radio for giving me the opportunity to discuss our findings of the Human Pegivirus in brains of patients with Parkinson's disease. wgnradio.com/health/dr-ig...
@nmneurology.bsky.social

A virus might trigger or contribute to Parkinson's disease, Northwestern Medicine researchers find Parkinson's disease is a neurogenerative disease that affects more than 1 million people in the U.S. While some cases are caused by genetics, the cause is unknown in most.

Thank you to CBS News for inviting me to talk about our new study showing a potential role of the Human Pegivirus in Parkinson's Disease
@nmneurology.bsky.social
www.cbsnews.com/chicago/news...

Northwestern study finds potential virus link to Parkinson's disease A groundbreaking new study out of Northwestern Medicine may offer new hope for the more than one million Americans living with Parkinson’s disease.

Nice job by NBC Chicago news team for their report about our study showing a potential virus link to Parkinson's Disease
@nmneurology.bsky.social
www.nbcchicago.com/news/local/g...

Kudos to WGN TV for their report on our study published in JCI Insight showing that the Human Pegivirus may be associated with Parkinson's Disease
@nmneurology.bsky.social
wgntv.com/news/medical...

Common virus could trigger Parkinson's disease, research team at Northwestern Medicine says Groundbreaking new research released from Northwestern Medicine discovered that a usually harmless virus in the blood, may be triggering Parkinson's disease.

Thank you to ABC 7 for inviting me today to talk about our study on the Human Pegivirus in Parkinson's Disease
abc7chicago.com/post/human-p...
@nmneurology.bsky.social

Human pegivirus alters brain and blood immune and transcriptomic profiles of patients with Parkinson's disease - PubMed Parkinson's disease (PD) is a neurodegenerative disorder with both genetic and environmental factors contributing to pathogenesis. Viral infections are potential environmental triggers that influence ...

Congratulations to Barbara Hanson PhD, for her publication in JCI Insight. This is the result of years of hard work during her thesis and post-doctoral fellowship, which opens a new field of investigation in Parkinson's Disease research pubmed.ncbi.nlm.nih.gov/40626361/
@nmneurology.bsky.social

Congrats to Northwestern medical school student Tali Sorets for her paper : “Beyond mood screening: a pilot study of emotional, cognitive, and somatic concerns in patients with Long COVID” which just came out in Frontiers in Psychology
www.frontiersin.org/journals/psy...

@nmneurology.bsky.social

A Social Media Survey on the Prevalence of Post-COVID Neurologic Complications Among Nigerians - PubMed Despite low testing rates in Nigeria, the prevalence of post-COVID neurologic complications is approximately 1 in 4 individuals. Further studies on the prognosis and management of post-COVID neurologi...

Congratulations to our collaborators Drs. Iorhen Akase, Njideka Okubadejo and their entire team at Lagos University Teaching Hospital in Nigeria for their publication in the West African Journal of Medicine pubmed.ncbi.nlm.nih.gov/40544471/ @nmneurology.bsky.social

400 Million+ People Globally With Long COVID: A Top Researcher Seeks Solutions YouTube video by Conversations on Health Care

Thank you to "Conversations on Health Care" for giving me the opportunity to talk about the Neurologic manifestations of Long COVID which affect millions of people in the US, and the importance of continuing Long COVID research. www.youtube.com/watch?v=9xyR...
@nmneurology.bsky.social

Expert warns common virus dramatically raises risk of early dementia A virus that has infected about two thirds of Britons, and millions more worldwide, could increase the risk of developing the memory robbing disorder dementia earlier, scientists warn.

Interesting article in @dailymail.co.uk warning about risk of persistent cognitive dysfunction in people with Long COVID.
www.dailymail.co.uk/health/artic...
@nmneurology.bsky.social

Kudos to the Neuro residents, Psych and PM&R rotators and APRN on the general Neurology Consult team @nmneurology.bsky.social for a strong and efficient work today!

Is Covid Rewriting the Rules of Aging? Brain Decline Alarms Doctors Millions of long-Covid patients continue to struggle with cognitive difficulties.

Timely article in @wsj.com today about the persistence of cognitive difficulties affecting many people with #LongCOVID.
www.wsj.com/health/welln...
@nmneurology.bsky.social