Testing for antibodies
reactive with antigenic preparations derived from various
microbes is commonly used in the laboratory diagnosis of
infectious diseases. The implication of a positive result is
that it indicates either active or prior infection with the
microbe against which the antibodies react.
Stealth viruses are a molecularly heterogeneous grouping of
atypically structured cytopathic viruses that include
herpesviruses lacking the major antigenic targets for
anti-viral cellular immunity.1,2 A prototype stealth virus
shares DNA sequence homology with, and was undoubtedly
derived from, an African green monkey simian cytomegalovirus
(SCMV). 2 This virus has incorporated additional viral,
cellular and bacteria derived sequences into its genome.3,4
Genetic recombinations, together with a high rate of genetic
errors in viral replication, has resulted in a virus with a
wide diversity of potential antigenic sites.5
Stealth viruses have been cultured from numerous patients
with chronic disabling illnesses. Stealth virus culture
positive patients have been diagnosed as having various
illnesses, including chronic fatigue syndrome, Gulf war
syndrome, Lyme disease, autism, psychiatric disease and
unexplained encephalopathy. In addition to the commonly
reported Epstein-Barr and human herpesvirus-6 antibodies,
several patients were noted to be unexpectantly positive in
other serological assays. An elderly woman tested positive
in an anti-HIV ELISA assay with an initial confirmatory
western blot analysis, which reverted to an indeterminant
western blot on subsequent testing. Other patients have
shown positive HIV ELISA with negative western blots. A
patient had her blood sent to Germany for Borna virus
testing with a positive result. Many of the stealth virus
positive patients diagnosed as having chronic Lyme disease
on the basis of serology, also test positive for Babesia and
Erlichiosis.6 It is possible that many of these serological
reactions are caused by stealth viruses and not by the
pathogen for which the assays were intended.
Immunogenic bacterial antigens encoded within certain
stealth viruses could also elicit antibodies that mediate
allergic reactions. This would be consistent with the high
frequency of these reactions among stealth virus infected
patients. 7
These topics can best be addressed by detailed antibody
studies on the stealth viruses cultured from symptomatic
patients. These research tests can be performed in parallel
with routine screening serology for common pathogens.
Physicians with patients suitable for such studies should
contact CCID by phone at 626 572-7288 or by e-mail at
ccidlab@hotmail.com
References
Martin W.J, et al. Cytomegalovirus-related sequences in an
atypical cytopathic virus repeatedly isolated from a patient
with the chronic fatigue syndrome. Am. J. Path 1994; 145:
441-452.
Martin, WJ. Stealth adaptation of an African green monkey
simian cytomegalovirus. Exp Mol Path 1999;
Martin, WJ. Cellular sequences in stealth viruses.
Pathobiology. 1998; 66: 53-58.
Martin, WJ. Bacteria related sequences in a simian
cytomegalovirus-derived stealth virus culture. Exp Mol Path.
1999;
Martin WJ. Genetic instability and fragmentation of a
stealth viral genome. Pathobiology. 1996; 64: 9-17.
Burrascano, J. Personal Communication
Kopelson, J. Personal Communication