There are 5 cases being reviewed. It doesn't meant that there have only been 5 cases.
In the article it states:
*Multiple sclerosis (MS) with onset in the setting of acute SARS-CoV-2 virus infection has been reported, and reactivation of MS following non-mRNA COVID-19 vaccination has been noted, but there have only been three reports of newly diagnosed MS following exposure to mRNA COVID-19 vaccine. The association cannot be determined to be causal, as latent central nervous system demyelinating disease may unmask itself in the setting of an infection or a systemic inflammatory response. We report a series of 5 cases of newly diagnosed MS following recent exposure to mRNA COVID-19 vaccines. Latency from vaccination to initial presentation varied. Neurological manifestations and clinical course appeared to be typical for MS including response to high dose steroids in 4 cases and additional need for plasmapheresis (excision and treatment of someone's blood or replacing their blood) in one case. *
https://www.sciencedirect.com/science/article/pii/S016557282100312X
Yes, Ivermectin might help, it is used to treat parasites. Babesia is one co-infection of Lyme that is actually from a parasite. Lyme (borrelia) and Bartonella are bacterial infections. Though Bartonella can also be carried by parasites as well (it lives inside the parasite).
There are plenty of other treatments for Bartonella that work better though, including herbal ones.
I would suggest she take the Horowitz questionnaire to see if her symptoms match:
https://www.tiredoflyme.com/horowitz-lyme-msids-questionnaire.html
And then find a LLMD who will diagnose her and treat. I had 18 vials of bloodwork sent to 2 different labs to confirm my diagnosis. Igenex and Armin are the top labs to use.
LLMDs diagnose not just based on bloodwork, but also based on symptoms and history. It is a clinical diagnosis. They are expensive, and usually in private practice, but worth it.
If you want to find a good LLMD you can search here:
https://www.ilads.org (you need to make a free account)
Or post on this forum, this is the best Lyme/Bartonella forum:
https://www.healingwell.com/community/default.aspx?f=30
Other resources:
https://rawlsmd.com/health-articles/understanding-bartonella
https://www.amazon.com/Healing-Lyme-Disease-Coinfections-Complementary/dp/1620550083/ref=sr_1_3?keywords=unlocking+lyme+by+dr.+rawls&qid=1642782850&sprefix=unlocking+lyme%2Caps%2C102&sr=8-3
https://www.amazon.com/Unlocking-Lyme-Practical-Solutions-Chronic/dp/0982322526/ref=sr_1_2?keywords=unlocking+lyme+by+dr.+rawls&qid=1642782850&sprefix=unlocking+lyme%2Caps%2C102&sr=8-2
You can have Bartonella on its own without Lyme, it is the #1 cause of disability in veterinarians because they are bitten and scratched by cats so often. It is really hard to get a positive test result for it.
My Bartonella symptoms were almost entirely neurological -- the tingling, numbness, spasms, etc. It is known for causing bouts of rage, depression, and depersonalization. It can also cause the following: bottom of foot pain in the morning (like plantar fasciitis), sore throat only when you wake up (it goes away), swollen glands particularly in the neck, stiff neck, ice-pick headaches, pressure headaches, sore scalp, purple stretch marks, blotchy red livedo reticularis rash (google it for pics), night sweats, and worsening symptoms with your period.