December #66 : The Viral Lowdown: Mystery: Partially Positive

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Table of Contents

The Viral Lowdown: Can You Believe What She Says?

The Viral Lowdown: Say What

The Viral Lowdown: Word Is Out For New HIVers

The Viral Lowdown: Dishing Out the Denial

The Viral Lowdown: Pharma Flubs Phase IV

The Viral Lowdown: Lack of Leadership Leaves Latinos In Lethal Lurch

The Viral Lowdown: Mystery: Partially Positive

The Viral Lowdown: Prison Death Prompts Probe

The Viral Lowdown: African AIDS Under a TAC

The Viral Lowdown: All Dolled Up: Rx Abuse High Among Gay HIVers


The Viral Lowdown: If Not Now, When? If Not Us, Who?

The Viral Lowdown: News Flash: The Sky Isn't Falling!

The Viral Lowdown: HIVers in Hock to Homophobia

Tales of the (Safer Sex) City

Clean, Sober...and Medicated?

The Secret Plot to Destroy African Americans


The Art Of Living

Summit, Some More

Channel Surfing

Shout Out

Lights! Camera! Handcuffs?

Quick Picks

Life Is Sweet

Packing Meat, Just Barely

A Cell of One’s Own


Doing AIDS Justice

Petal Pusher

Carry On, MP

Milk Got You?

Comfort Zone

Big Science Kicker

Herb Of The Month

Protease Progeny

It Takes Guts

Between A Recovery And A Hard Place

Most Popular Lessons

The HIV Life Cycle


Herpes Simplex Virus

Syphilis & Neurosyphilis

Treatments for Opportunistic Infections (OIs)

What is AIDS & HIV?

Hepatitis & HIV

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December 2000

The Viral Lowdown: Mystery: Partially Positive

Exposed Sero-Negatives may hold key to cure, but the CDC and activists pooh-pooh Dada data.

What if everything we thought we knew about AIDS was wrong? That's what a few noted researchers are muttering as they scratch their heads over a decade's worth of scattered science suggesting that some people exposed to HIV, and even a few infected with the virus, do not develop HIV antibodies. Dubbed Exposed Sero-Negatives, or ESNs, because they test negative on the standard blood tests, these people are either touched by angels or ticking time-bombs. But in addition to holding the potential key to natural protection against HIV and other immune-boosting breakthroughs, these scientific conundrums may pose a very real threat not only to sex partners but to the principles of safe sex and the nation's billion-dollar blood-supply industry. Given its far-reaching relevance, some virologists say, the CDC has shown remarkably little interest in ESNs. "This issue has been known about for at least 12 years," said Joseph Sonnabend, MD. "Great evidence has been presented at meetings, and the CDC has always downplayed it."

One of the first studies to confirm that HIV can infect and be integrated into the DNA of certain individuals without activating the virus or producing antibodies was done by Mario Clerrici, MD, at the NIH. Follow-up studies of different risk groups confirmed these findings in the Journal of the American Medical Association in 1994. Further reports in 1998 from the University of Washington and the Sydney Blood Bank Cohort found that measures of immune activity were similar to responses in animals protected by experimental AIDS vaccines. Repeated exposures to HIV, scientists theorize, have, like vaccines, triggered a priming of the immune system that keeps the virus in check. As a result, most ESNs may never seroconvert, although some in the Sydney cohort, as of September, showed CD4 declines and other signs of HIV disease progression.

However, urgent questions remain: Are ESNs infectious? What causes latent HIV to be activated? Answers are as distant today as they were 12 years ago -- and likely to remain so. Yet Sonnabend said that fingering the CDC alone is unfair. "No treatment activist or AIDS journalist has showed even the slightest interest," he said, adding that "the ignorance or willful misrepresentation by the AIDS research leadership has been almost offensive."

New Yorker Steve Crohn, who learned he belonged to the exclusive ESN club in 1994 when it was discovered that he had a gene mutation that literally blocks HIV from making it to the infection stage, bemoans the lack of action in the lab. "They haven't gotten very far in coming up with a test for people in my circumstance, let alone looking at whether we can transmit HIV to others in sex," he said. So mysteries abound, but according to Crohn, there's no mystery as to why the industry is investing in ESNs' vaccine potential rather than attending to such conerns as Crohn's: Follow the money.

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