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Viruses the World Never Wanted to Meet

March 7, 2020

Here are some of the WORST viruses that have
affected the world! 12 – Rabies
Rabies is a viral disease that causes inflammation of the central nervous system and is caused
by a lyssavirus. That’s definitely NOT a virus you want! Getting the virus actually isn’t life threatening,
as long as you get treatment for it. If you don’t get treatment for the virus,
you’ll eventually develop rabies……..and by that time you’re pretty much a goner! Rabies infection in humans is exceptionally
rare in the US, with typically less than 10 cases reported each year. Globally, dogs are the most common animals
involved. In countries where dogs commonly have the
disease, more than 99% of rabies cases are the direct result of dog bites. But, other animals, such as raccoons or foxes,
can easily have it as well. Early symptoms of rabies include fever and
tingling at the site of the bite. These symptoms are followed by violine movements,
uncontrolled excitement, an inability to move parts of the body, confusion, loss of consciousness,
and believe it or not, fear of water! Hydrophobia, or fear of water, was the old
name for rabies. It refers to a set of symptoms in the later
stages where someone who has rabies has difficulty swallowing and shows panic when given liquids
to drink! During this stage, saliva production is increased
and any attempts to drink liquids, or even the thought of drinking, can cause excruciatingly
painful spasms of the muscles in the throat and larynx. Why does this happen? It’s because the virus multiplies in the
salivary glands. It’s basically where they set up shop and
try to get to other hosts when their current host bite someone else! The ability to transmit the virus would decrease
significantly if the infected person could swallow saliva and water. The time period between contracting the disease
and the start of symptoms is usually one to three months. But that can vary depending on the distance
the virus has to travel along the peripheral nerves to reach the central nervous system. The lesson here is, if you get bitten by a
wild animal…..go get rabies treatment! 11 – Ebola
The Ebola virus is one virus you DO NOT want to get. The virus actually isn’t that great because
of the high fatality rates associated with Ebola. With such a fast fatality rate, the virus
isn’t great at what it’s supposed to be doing, and that job is spreading to as many
people as possible. Viruses actually don’t want to pill their
host, because then they won’t survive either! Ebola causes hemorrhagic fevers. There’s a whole family of ebolaviruses,
with 6 known strains, and each of them have different fatality rates. The good news for us is that the virus isn’t
airborne. – it only spreads through direct contact
with body fluids, so that’s a relief! Fruit bats are believed to be the normal carrier
in nature since they’re able to spread the virus without being affected by it. What happens when you get ebola? Symptoms start anywhere between two days and
three weeks after contracting the virus. People with Ebola develop a sudden flu-like
stage characterized by feeling tired and feverish. Decreased appetite, muscle pain, joint pain,
headache, and sore throat soon follow. Yeah, these people are definitely NOT feeling
well. Affected people are susceptible to severe
dehydration just because they’re spewing liquids everywhere if you know what we mean. And it doesn’t stop there. Shortness of breath and chest pain may occur,
along with swelling and confusion. In about half of the cases, their skin may
develop a maculopapular rash, a flat red area covered with small bumps. The craziest part is, In some cases, people
just basically become liquified from the inside! All infected people show some decreased blood
clotting and some cases are way more severe than others. The chances for survival if someone gets any
strain of Ebola Virus is roughly 50%. One strain is as high as 10%! These high rates are a double edged sword. It bucks for the person who has it, but it’s
great for everyone else in general! 10 – SARS
Do you remember SARS back in the early 2000s? Sars stands for Severe Acute Respiratory Syndrome. And yep, it’s a coronavirus! It was the first epidemic caused by a coronavirus. Symptoms of SARS include fever, cough, severe
headache, and dizziness. Sars basically was a lot like pneumonia that
didn’t respond to standard treatments. SARS first originated in China, but it quickly
spread to other countries. Patient zero had been medical doctor Liu Jianlun. He went to Hong Kong from Guangzhou to attend
a wedding. He checked himself into room 911 of the Metropole
Hotel, in Kowloon. And that’s where he started getting sick
and infected at least 16 other guests and visitors of the hotel! He was rushed to the hospital,but he didn’t
make it during his stay. However, he infected a number of hospital
personnel, and it would only get worse from there. The craziest and scariest part with this coronavirus
was that it was airborne! Roughly 1 out of every 10 people didn’t
make it. So it spread easily, AND was extremely dangerous. While Chinese authorities were immediately
alerted of the mysterious virus that had appeared, their first reaction was one of denial and
censorship.They decided that the best course of action was to impose total silence on the
issue. The few newspapers that reported on the disease
were criticized by the local censorship department and ordered to stop printing anything that
hadn’t been pre-approved. In February of 2003, though, SARS could no
longer be kept hidden. People knew that something dangerous was going
on.A tug-of-war started between the Chinese authorities and World Health Organization
officials. They had been alerted by the spread of the
virus to other areas such as Taiwan, Singapore, Vietnam, and Canada. This was one virus health officials just weren’t
prepared to handle. It was a new virus, and officials had no clue
how to handle it! However, as quickly as it appeared and spread,
it also just stopped just as quickly. To this day, there’s still not a vaccine
for SARS. How did it stop? Basically the virus just disappeared on its
own. 9 – Spanish Flu
The 1918 influenza pandemic, known as the Spanish flu, was the most severe pandemic
in recent history and it was caused by an H1N1 virus. It’s estimated that around 500 million people
or ONE THIRD of the world’s population became infected with this virus! The number of people that didn’t make it
was estimated to be anywhere from 20 to 50 million worldwide! And this pandemic lasted just 15 months! What made it so bad? Well, one big thing was viruses just weren’t
well known at the time. Very little was known about viruses and their
transmission. Doctors and scientists were unsure what caused
it or how to treat it. The very first virus had only been discovered
26 years earlier, so there weren’t any helpful drugs or any vaccines. The first wave of the 1918 pandemic occurred
in the spring and wasn’t all that dangerous. People who got sick experienced typical flu
symptoms and usually recovered a few several days. However, a second, highly contagious wave
of flu appeared in the fall. People were wiped out within hours or days
of developing symptoms! Their skin would turn blue and their lungs
would fill with fluid that caused them to suffocate. In just one year, the average life expectancy
in the US plummeted by a dozen years! It was just really unlucky to get this virus
at that time with the little knowledge by medical experts! 8 – Bird Flu
Bird flu is an illness that usually affects only…..yep you guessed it, birds. And with this particular flu, there are a
lot of different strains. Only those labeled H5, H7 and H10 have effects
on humans. The most commonly seen and deadliest form
of the virus is called the H5N1 virus. This particular one has a mortality rate close
to 60%! The first known transmission of H5N1 to a
human occurred in Hong Kong in 1997, when there was a small outbreak. 18 people got it, and 6 of them didn’t make
it. H7N9 is another strain of the bird flu that’s
unusually dangerous for humans. The good thing is that it’s not able to
be spread easily among humans. At least, not yet. Health experts are concerned that the coexistence
of human flu viruses and avian flu viruses will provide an opportunity for genetic material
to be exchanged between these species-specific viruses. This gives the possibility of creating a new
strain of virus that’s dangerous and highly contagious! And here’s where it gets really bad. Scientists found that by tweaking H7N9’s
genetic code, they could easily change the receptors the virus latched on to. Basically they could easily change the bird
version to the human version. Another study published in 2012 reported the
findings on research on the airborne transmission of H5N1 virus in laboratory ferrets. The study identified the 5 mutations necessary
for the virus to become airborne! That immediately spiked controversy over the
ethical implications of making potentially dangerous information available to the general
public. Could this be the next biochemical weapon?! 7 – MERS
MERS is another scary coronavirus that first appeared in Saudi Arabia in 2012! It’s since then spread to over 27 countries,
with roughly 2,500 cases. MERS, or Middle East Respiratory Syndrome
coronavirus is thought to have emerged from camels. However, the virus acquired the ability to
be transmitted from human to human. Symptoms include fever, cough, and shortness
of breath, often leading to pneumonia. The mortality rate for reported cases is about
one third! There’s no vaccine and no recommended antiviral
treatment. That’s what makes it so scary! It’s more dangerous than its cousin SARS,
and that was already scary enough!. Researchers don’t yet know its exact mode
of transmission, but so far, it’s spread through close contact with people who have
it. The longer you’re close to someone with
MERS, obviously the higher the chances of you catching it as well. The virus very likely first transferred from
an infected animal to a human. A 2014 study indicated that three-quarters
of camels in Saudi Arabia tested positive for past MERS exposure and at least one bat
had the virus as well. 6 – Nipah virus
The Nipah virus was initially isolated and identified back only in 1999. Its name originated from Sungai Nipah, a village
in the Malaysian Peninsula where pig farmers became sick from the virus. Bats were quickly singled out for investigation
and specifically, flying foxes were subsequently identified as the reservoir for the virus. In the 1999 outbreak, the Nipah virus caused
a relatively mild disease in pigs, but nearly 300 human cases with over 100 people passing
were reported! Infection with Nipah virus is associated with
encephalitis, which is a severe inflammation of the brain. People affected get fevers and headaches,
followed by drowsiness, disorientation and mental confusion. These signs and symptoms can progress to a
coma within 24-48 hours! Roughly 50-75% of people don’t make it. And even survivors don’t go unscarred – there
are long term consequences for the Nipah virus! Apparently, persistent seizures can continue. And the crazy thing is that personality changes
can also happen in people who survive the virus! 5 – Marburg virus
The Marburg virus is responsible for the Marburg virus disease. This rare disease is an extremely dangerous
virus, because it has a case fatality rate of around 88%! Marburg virus disease was initially detected
in 1967 after simultaneous outbreaks in Marburg Germany, and was named after the German town. No vaccines or any drugs have been developed
to treat the virus, so this is definitely one virus you don’t want to get. This virus spreads via direct contact with
any bodily fluids of infected people. Burial ceremonies that involve direct contact
with the body of the deceased can also contribute in the transmission of Marburg virus! Symptoms are kind of like the Ebola virus. It begins abruptly, with high fever, headache,
and overall discomfort. Muscle aches and pains are a common feature. The appearance of patients has been described
as showing “ghost-like” features. Basically deep-set eyes, expressionless faces,
and extreme tiredness. By the 5th day, many patients start let’s
just say…..leaking. And it’s often from multiple areas. As time goes by, the central nervous system
gets involved and confusion, irritability, and aggression start in patients. Again, because the virus is so good at wiping
out its human hosts, it’s not the most effective virus at spreading! 4 – Hantavirus
The hantaviruses are a relatively newly discovered genus of viruses. The first outbreak happened among American
and Korean soldiers during the Korean War. More than 3000 troops became ill with the
virus. Roughly 10% of the soldiers that were affected
didn’t make it. The hantavirus typically is found in rodents,
but it doesn’t cause any symptoms in them. Human infections of hantaviruses have almost
entirely been linked to human contact with rodents through direct contact. Different strains cause different symptoms. For example, one strain causes hemorrhaging,
while another strain causes pulmonary syndrome. The hantavirus that causes pulmonary syndrome
was first discovered during the 1993 outbreak in the Four Corners region of the southwestern
United States. If you don’t know, that would be the area
where Utah, New Mexico, Colorado and Arizona intersect. It was originally called the “Four Corners
disease,” but the name was later changed to “Sin Nombre virus” after complaints by Native
Americans that the name “Four Corners” stigmatized the area. Symptoms of this particular hantavirus are
flu-like, and it includes fever, cough, muscle pain, headache, and overall tiredness. People with suspected hantavirus infections
are admitted to the hospital, given oxygen and mechanical ventilation support to help
them breathe but there’s not much more doctors can do! 3 – Wuhan virus
As of February 2020, most of the world is still freaking out about the coronavirus. This particular strain is now called COVID-19. It was first discovered in Wuhan, and that’s
why it’s also called the Wuhan Virus. Yep it’s another novel coronavirus. However, it’s a member of the coronavirus
family that’s never been seen before, and that’s why the world has been going nuts
over it! As of the release of this video, scientists
have speculated that this virus most likely came from bats, just like other coronaviruses. However, that’s still yet to be confirmed. There’s still so much unknown about the
virus. Key stats such as what’s the fatality rate
and how easily it’s spread just aren’t known yet. Also, it seems to affect some people a lot
more than others. Many of the people first infected either worked
or frequently shopped in the Huanan seafood wholesale market in Wuhan. That was a market for many different types
of exotic animals that could carry viruses! What IS known is that the Wuhan virus causes
pneumonia. Those people who have fallen ill are reported
to suffer coughs, fever, and difficulties in breathing. In the most severe cases organ failure happens. Because this is a virus, antibiotics don’t
work nor do any antiviral drugs for the flu. Once people get admitted to hospital, they
basically just get support for their lungs and organs, as well as replenishment in fluids. But in most cases, recovery depends entirely
on their own immune system. Many people that are severely affected are
people with compromised immune systems. However, what’s the scariest thing is the
range of severity of symptoms. Some people appear to not have any symptoms
at all even though they carry the virus. Some people only have some light cold-like
symptoms that go away in a short time. Then there are the people that become severely
ill. And this is why this makes it difficult to
establish the true number of infected people. The number of people affected by the virus
keeps climbing as of the release of the video. The important question is when the virus will
be contained. Conspiracy theorists speculate that the virus
was man made. If that’s true, then that means no vaccine
could be made for this virus! A lot of countries have stopped travel to
and from china just because of all that’s NOT known about the virus. Better safe than sorry! 2 – Lassa virus
Lassa fever is a type of viral hemorrhagic fever caused by the Lassa virus. The virus was first described in 1969 from
a case in the town of Lassa, in Nigeria. The Lassa fever is relatively common in West
Africa. There are anywhere from 300,000 to 500,000
cases per year. Approximately
Strangely enough, 80% of those who get the Lassa virus show little to no symptoms at
all. The only mild symptoms include fever, tiredness,
weakness, and headaches. However, 20% of people experience more severe
symptoms such as breathing problems or dangerously low blood pressure. Among the survivors, roughly a quarter have
hearing loss! But, it does slowly improve within three or
four months. Since so many other viruses have similar flu-like
symptoms, diagnosis based on symptoms alone is difficult. Usually, doctors need a series of lab tests
to confirm the Lassa virus. There’s no vaccine for the Lassa virus and
antiviral medications don’t always work. Patients are simply told to take more fluids
and rest. 1 – HIV
We’re not going to cover too much on HIV, since most people know plenty about this virus. HIV is human immunodeficiency virus and it
targets the immune system. It weakens people’s defense systems against
infections and some types of cancer. As the virus impairs the function of immune
cells, infected individuals gradually become susceptible to a wide range of infections,
cancers, and other diseases that people with healthy immune systems can fight off. The most advanced stage of HIV infection is
acquired immunodeficiency syndrome or AIDS. Even though there isn’t a cure for the virus,
treatment for the virus has gotten much better since its discovery. People with HIV now have medication where
they can get their viral loads down to undetectable levels. What that means is that even though someone
can be HIV positive, they aren’t able to transmit the virus! Watch this next video to find out about about
the truth about the untold truth about the escape from Alcatraz!


  • Reply Mr.Robot March 6, 2020 at 8:22 pm

    Wow.This channel is dead.

  • Reply Carl Johnson March 6, 2020 at 9:27 pm


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