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Virology

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Piston1

Friend or foe

Followers: 4

Lifetime Tokens: 0

Virology RNA Virus

RNA viruses' rapid mutation fuels both pandemics and groundbreaking vaccines

0

What is a key factor that makes RNA viruses particularly challenging to control in human populations?

They have DNA genomes that integrate into human chromosomes. Their high mutation rate allows them to quickly adapt and evade immune responses. They replicate very slowly, making them less detectable by the immune system.

Stevek113

Author has not completed a profile

Followers: 7

Lifetime Tokens: 0

Virology Hepatitis B Surface Antigen (HBsAg)

A tiny viral protein reveals a hidden epidemic of silent liver infections worldwide

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Why does the presence of HBsAg in the blood complicate the management of hepatitis B infection?

Because HBsAg presence means the virus is no longer infectious and treatment can be stopped. Because HBsAg is only present during the initial infection and disappears once symptoms develop. Because it indicates active viral replication and potential for chronic infection, requiring ongoing monitoring and treatment decisions.

123

Followers: 0

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Virology Variola Virus

The last natural case of smallpox in 1977 ended centuries of deadly outbreaks worldwide

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What was the key factor that enabled the global eradication of the Variola virus?

The natural mutation of the virus into a harmless form A coordinated global vaccination campaign led by the World Health Organization The development of antiviral drugs that cured infected patients

Steeeve

Steeeve is an IT guru

Followers: 4

Lifetime Tokens: 108

Virology Rabies Virus

Rabies virus manipulates host behavior to boost its own spread across species.

0

What is the primary reason rabies virus causes aggressive behavior in infected hosts?

To increase the likelihood of transmission through bites. Because it directly attacks the muscles controlling aggression. Due to dehydration caused by fever leading to irritability.

Piston1

Friend or foe

Followers: 4

Lifetime Tokens: 0

Virology Broad-spectrum antivirals

A single antiviral drug can combat dozens of different viruses by targeting shared vulnerabilities.

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What is a key advantage of broad-spectrum antivirals compared to virus-specific antivirals?

They only target one virus but do so more effectively than other antivirals. They work by boosting the immune system rather than directly inhibiting viruses. They can inhibit multiple viruses across different families by targeting common viral or host factors.

SteveO1

Technology and cars

Followers: 8

Lifetime Tokens: 6

Virology Pandoravirus yedoma

Ancient viruses frozen for millennia awaken as climate warms, challenging modern science

0

What major concern does the revival of Pandoravirus yedoma from permafrost highlight?

That all ancient viruses are harmless to modern life That Pandoravirus yedoma can infect humans directly The potential release of ancient pathogens due to permafrost thawing

FordMotor

Ford makes good cars for great people. This is the page for our new F1 team.

Followers: 7

Lifetime Tokens: 0

Virology RNA Virus

RNA viruses' rapid mutation rates fuel both pandemics and scientific breakthroughs

0

Why do RNA viruses tend to evolve more rapidly than DNA viruses?

Because their RNA-based genomes replicate with higher error rates, leading to more mutations. Because they have larger genomes that allow more genetic diversity. Because RNA viruses use DNA intermediates that increase mutation frequency.

FordMotor

Ford makes good cars for great people. This is the page for our new F1 team.

Followers: 7

Lifetime Tokens: 0

HEALTH Virology SARS-CoV-2

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SARS-CoV-2's spike protein evolved to bind human cells with surprising precision, fueling its rapid spread

6 Feb 2026

SARS-CoV-2's spike protein evolved to bind human cells with surprising precision, fueling its rapid spread Few viruses have reshaped the world as swiftly and profoundly as SARS-CoV-2. Emerging seemingly overnight from Wuhan, China, this microscopic...

SteveO1

Technology and cars

Followers: 8

Lifetime Tokens: 6

Virology Megavirus mammoth

Ancient Megavirus mammoth revived from Siberian permafrost after 30,000 years frozen

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What is the primary significance of the discovery of Megavirus mammoth in permafrost?

It proves that Megavirus mammoth can infect humans and cause diseases after thawing. It shows that viruses can remain viable after tens of thousands of years frozen, raising concerns about ancient pathogens being released due to thawing permafrost. It indicates that all viruses found in permafrost are harmless to modern ecosystems.

FordMotor

Ford makes good cars for great people. This is the page for our new F1 team.

Followers: 7

Lifetime Tokens: 0

Virology Halorubrum pleomorphic virus 6

Halorubrum pleomorphic virus 6 reveals unique viral adaptations in extreme salt-loving archaea

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What distinguishes Halorubrum pleomorphic virus 6 from many other viruses in terms of its host and morphology?

It infects halophilic archaea and has a variable, pleomorphic shape. It infects bacteria and has a rigid icosahedral shape. It infects eukaryotic cells and has a filamentous shape.

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