Babesia is a protozoan, a higher life form than bacteria.
Both are single cell organisms. The
primary difference is protozoa have an organized nucleus containing DNA. It is a member of
the phylum Apicomplexa. This is a
relatively small group of organisms. Its closest relative is Malaria; only
Babesia and Malaria (Plasmodium spp.) are intraerythrocytic, meaning live
inside red blood cells. Because of this, many therapies against malaria are
also effective against Babesia. Mainstream
medicine offers two therapies only: quinine/clindamycin and Zithromax/Mepron
(atovaquone). These approaches frequently fail and additional approaches are
required.
Historically, Babesia was first described in the 1950s as a
cattle disease. The first human cases,
B. microti were described around Nantucket Island in the 1960s. Many physicians have stubbornly, erroneously clung
to the belief that human babesiosis on the east coast, is virtually always
caused by B. microti. Although B.
duncani was first described on the West Coast, it currently accounts for the
majority of speciated cases diagnosed on the East Coast as well. More often than not the diagnosis is made
without speciation. (the species of Babesia causing the illness is not identified). There are more than 100 species of Babesia
known. Other species, MO1, CA1 are
recognized human pathogens in the US. B.
divergens, a bovine species, is known to have jumped species, cow to human.
Most Lyme doctors
make the diagnosis empirically, based on symptoms. Underused diagnostic tools include Giemsa stains
and FISH tests. Many Babesia symptoms
are nonspecific. In my practice I
especially pay attention to a triad:
night sweats +/- feeling feverish, air hunger and change in emotional
state – especially random bouts of tearfulness.
For many patients the two “standard” therapies, as stated
above, proves ineffective or only partially effective. Other therapies
may be effective and medically necessary. Therapies must be science based and rational.
The term evidence based refers to
mainstream treatment vetted through a peer reviewed process and frequently, not
always FDA approved. Second tier drugs
and therapies are used when “evidence based” treatments have failed. Science based approaches require biological
plausibility, e.g. med works well against malaria and/or their use is supported
by body of empirical evidence, e.g. traditional herb has been used for a century
to treat malaria. Doctors prescribing
these therapies need to be knowledgeable about the disease.
One approach/theory must be debunked. This is the idea that 4 months of treatment
is all that is required. The basis for
this thinking is that red blood cells only live 120 days. Therefore, after 4
months every infected red blood cell will have been replaced. It may sound plausible,
but the reasoning is not sound. Every red blood cell (RBC) has a different
birthday and at a different point in its lifecycle. Cells are destroyed and made every day. Infected senescent cells may transfer
merozoites (infecting stage of parasite) to new born cells on any given day. There is no specific duration that will always
be effective. A short course of therapy, e.g. 3 weeks of quinine/clindamycin
could at times achieve compete remission.
Antimalaria drugs make work well but not all antiprotozoal drugs
kill Babesia. This seems to be a common misconception. Some drugs used to treat toxoplasmosis (like
Mepron) may be effective against Babesia. Drugs active against, Giardia, Amoeba,
Leishmaniasis and other protozoans will likely not be effective. Flagyl is a broad-spectrum drug with activity against
Giardia and Amoeba. It is also an effective anti-Lyme drug. It has no activity
against Babesia.
Anti-worm drugs, such as ivermectin, is active against
microfilaria, and has no antibabesia properties. If the drug provides relief of symptoms it is doing something else.
Unless you are a scientist -- reading about complex cellular
biology, biochemistry, etc. is likely only to confuse. A patient copied and pasted
something from the internet which claims that Babesia infection suppresses the production
of nitric oxide. The truth is that Babesia
infection activates macrophages and stimulates the production of nitric oxide
(NO). Nitric oxide is an extremely
complex signaling molecule and an entire science journal is dedicated to this
one compound. Reading about cytokines
and metabolic pathways, killer T cells, Th1, Th2 etc. and trying to
apply it to your illness is an example of how a little knowledge can be
dangerous.
The Mepron/ Zithromax combinations is the most widely used
initial approach. The higher dose,
Zithromax 500-600 mg and Mepron 2 tsp twice daily is more likely to be
effective. Medication doses are within
FDA recommended levels. This is generally the best place to start.
Quinine/clindamycin is too toxic for most to tolerate but is
very effective.
Malarone has been used in lieu of Mepron but the dose of the
active ingredient, atovaquone is quite low.
The traditional herb artemisinin has a long track record and
is a very helpful adjunct to treatment. Combining active artemisinin with the whole
plant (artemisia) may enhance adsorption and bioavailability.
The FDA approved Coartem contains artemether, a more active
derivative of artemisinin and is very effective.
Liposomal artemisinin available through a compounding
pharmacy is a potent alternative.
Artesunate is another artemisinin derivate, available in
other countries; it may also be highly active. An oral version of the agent is also
available through TCM (Traditional Chinese Medicine) sources.
There are many traditional herbs, this is a partial list. Cryptolepis can be very effective at times,
sold as a single agent through a compounding pharmacy.
Herbal combination therapy, described by Buhner: cryptolepis,
sida acuta and alchornea may be an effective option.
Daraprim (with leucovorin) folic acid antagonist, a drug
typically used to treat toxoplasmosis and has some anti-Babesia properties. It may be helpful adjunctively.
Larium, related to quinine (with doxycycline) is very effective
but its use has been limited because the side effect depression.
Antibiotics, generally not effective as single agents. IV clindamycin can be effective in stubborn
cases.
Bactrim touted to have anti-babesia properties is typically
ineffective.
Other, novel approaches have been used in patients with very
resistant disease. For example, the
anticoagulant heparin coats merozoites and inhibits RBC penetration. (works in
mice, some human data).
Babesia can be associated with numerous symptoms: fever,
feeling flulike, malaise, fatigue, chills, sweats, headache, air hunger, cough,
joint pain, muscle pain, cough, abdominal pain, nausea, depression, changes in
emotional state and many others.
Clinically, Babesia is usually seen as a coinfection with
Lyme and other tickborne pathogens and symptoms may be more confused. Babesia is the second most common tickborne
infection after Lyme. Long term remission is attainable in the vast majority of
patients, time frame unpredictable.