What's up you guys, hope you’re having an awesome day, Im your host Ayman Hasan and
welcome back to another video.
Im back again with more diseases guys and im not even mad at it cus at least this way
im going to be able to qualify as a doctor if i ever leave top 10 one day.
Ive been learning so much through the research so hopefully you guys are learning too.
Knowledge is power people.
But anyway without further ado these are the Top 10 Scary Diseases That Could Wipe Out
Humanity - Part 3.
Starting us off with number 10 is Polio also known as infantile paralysis.
The infectious disease is caused by the poliovirus which basically colonizes the gastrointestinal
tract and its highly contagious.
The patient starts to become symptomatic anywhere between 3 days to a month and then it can
evolve into a type of polio that affects your CNS or a type that doesnt.
If it does affect your central nervous system then the patient will start experiencing extreme
pain, vomiting, fever.
1-5% cases progress quite badly to a paralytic disease in where the muscles become very weak,
poorly controlled and then eventually completely paralysed.
In infants this can even extend into an infection in their brain tissue which can then cause
seizures, changes in mental stability and so forth.
This disease has literally been around for thousands of years and despite developing
a polio vaccine in the 1950s we still havent eradicated it.
Coming in at number 9 is Syphilis Pt 1.
Now this one as many of you may know is an STI meaning its sexually transmitted or it
can be passed from a mother to her child during pregnancy.
And this one will be a bit of a novel to explain since you have it in one of 4 stages: primary,
secondary, latent and tertiary.
In the primary stage you get it via direct sexual contact with the actual lesions on
the other person.
And you yourself will develop a lesion anywhere between 3 days to 3 months after first contact.
In the secondary stage it appears a month to 10 weeks after and this one manifests on
your actual skin not just your genitalia.
It causes a bunch of non itchy pinky rashes, it can causes warts, fever, weight loss and
in rare occurrences it can cause kidney diseases and inflammation of your optic nerves and
joints.
At number 8 is Syphilis Pt 2.
The tertiary stage can actually occur 3-15 years after initially being infected and usually
people who leave the infection untreated will develop into the tertiary stage.
In this stage tumour like balls start forming and they can literally grow anywhere, on your
skin, bones liver etc. and ofc congenital syphilis is passed via pregnancy but most
kids are born without symptoms.
And the bad thing about syphilis is how common it is, in 2015 45.4 million were infected
and 107,000 people died from it.
Now there are antibiotics you can take to help reduce the infection, you can wear protection
during sex but we dont just have to deal syphillis now.
We have to deal with super syphilis which is what the infection has been dubbed since
becoming more and more resistant to antibiotics.
When an infection literally mutates like that its like natural selection for an infection,
the strongest ones who are most immune to the meds survive and then infect other people.
Filling our number 7 slot we have Rotavirus.
Now this contagious virus causes immense amounts of diarrhea.
The virus is found in the persons feces several days before they actually become symptomatic
and can stay there 10 days after recovery as well.
You can get infected if say you put your unwashed hands that are contaminated into your mouth,
if you eat contaminated food or if you touch any contaminated surface and then put your
hands in your mouth.
And keep in mind when you take a shit and then flush those particles come upwards so
you can easily get those particles in your mouth.
Its mostly children who get this one and within 2 days theyll be feverish, vomiting and letting
out a lot of watery diarrhea.
The poop will usually be black or tarry looking and can even include blood or puss.
There are 111 million cases of this annually and around 440,000 deaths in kids under the
age of 5.
Now at number 6 is Hepatitis C.
This infectious disease that we’ve all heard of and been told to get our vaccines for is
mostly transmitted via intravenous drug use.
In the developing world its mostly transmitted via unsafe medical procedures or blood transfusions.
But 20% of worldwide causes have unknown transmission sources so i mean theres that.
Acute symptoms develop 2 weeks to 6 months after and theyre usually mild, things like
body pain, vomiting, dark urine, jaundice and so forth.
However 80% of people develop a chronic infection and in this typ the person can easily not
show symptoms for the first few decades.
But theyll always be fatigued, it can lead to liver cancer, its very common to develop
cirrhosis (sa-ro-sis) especially within people who are infected and drink a lot.
In 2015, 143 million were infected and most deaths occur due to the development of liver
cancer or cirrhosis.
Coming in at number 5 is Leprosy aka Hansens Disease.
The way leprosy spreads isnt fully understood by researchers yet so idrk how im meant to
explain it to you but the respiratory tract is the most likely route and the source of
the disease is apparently armadillos.
Most people if exposed to an infected person arent actually infected unless they have extensive
contact with the person.
Symptoms include eye problems, development of skin lesions, muscle weakness, thickening
of facial hair, loss of feeling in your fingers and toes and in some cases you can even become
impotent.
You can stay asymptomatic for nearly 5 years before showing and the first sign of it pink
patches of skin that are completely numb.
Those patches can cause nerve problems and that is reversible if treated early but if
not then it can cause paralysis.
This is another ancient disease that hit its peak at 5.2 million cases in the 80s but thats
dropped to about 173,000 cases as of 2016.
At number 4 is Typhoid.
Idk how it took me 3 parts in the series to finally mention this bacterial disease but
better late than never.
Theres no animal source for this one, humans are the only known species that carry this
disease and its usually spread through the fecal oral route which i explained already
for the rotavirus.
There are 4 stages of symptoms when you have the typhoid fever, the first includes fever
fluctuations, a bloody nose, a decrease in your white blood cell count and a cough.
That seems absolutely awful and thats only the first stage.
In the second week the person is too weak to get up and delirium can occur at this stage.
Rosy spots start appearing on the persons chest and ab area and you start hearing these
rattling sounds from their lungs.
Diarrhea can also happen at this point and the spleen and liver can swell up.
Week 3 can bring about many complications including pneumonia, intestinal haemorrhage,
muttering delirium, even more fever, and the risk of bleeding increases tenfold.
At the end of these awful 3 weeks you may be cured or you may get worse.
In 2015 12.5 million cases were reported and 150,000 of those were fatal.
Filling our number 3 slot is Diphtheria (dip-theeria).
Now the source of this infection is unknown, we have no idea whether it was an animal or
not so we’re just gonna assume it originated from humans somehow until researchers tell
me otherwise.
You can get infected by someone infected coughing or sneezing near you and via contact with
any of the skin lesion that an infection person has.
After that exposure you start becoming symptomatic between 2 to 7 days after and that includes
fever, sore throat, your skin turning bluish, difficulty and pain swallowing and breathing
and bloodstained bad smelling nasal discharge.
Within 2 days the infection starts attacking and destroying tissue in the respiratory system
and that dead tissue builds up forming a gray coating.
That covers your nose, tonsils and throat which is why it becomes so painful to breathe
or swallow.
It can result in ‘bullneck’ as well which is a massively swollen neck and throat.
The 70s saw a million cases of the infectio yearly but nowadays its a lot more uncommon.
The death rate in cases is 5-10%.
Now at number 2 is Mumps.
MMR vaccine people.
GET IT. i've said this twice now.
Listen to your resident top 10 doctor.
This viral disease is highly highly contagious and spreads asap rocky.
Its spread via sneezing and coughing and ofc direct contact with the infected person we
know this by now these are the basics.
The patient becomes symptomatic around 2 weeks after exposure and its usually more severe
in adults than it is kids.
Youre contagious before even being symptomatic so thats great.
The person will start feeling muscle pain, feverish, their parotid (pur-oh-tid) salivary
glands will swell up a lot kinda looking like bullneck as well.
Complications occur in 15% of cases and that could mean pancreatitis, inflammation of your
heart or testes and even permanent deafness.
Its completely preventable if youve had 2 doses of the MMR vaccines so hello.
1% of the worlds population is still affected everywhere so cmon now guys.
And finally at number 1 is Gastroenteritis (gastro-enter-itis) aka infectious diarrhea.
And this is caused by many factors, by parasites, fungus, a certain type of bacteria etc. you
can get it from drinking contaminated water or sharing something like a water bottle with
an infected person.
One of the biggest causes is actually bottle feeding kids with improperly sanitized bottles.
A lot of adults actually act as reservoirs for this disease because they could developed
immunity to it but still carry the organisms.
The person will become symptomatic within 12 to 72 hours and diarrhea and vomiting will
hit them like a truck.
Dehydration is very common cus of diarrhea and that can lead to poor skin turgor (ter-ger)
which means the persons skin looks sunken as hell.
The Bristol stool chart which is essentially a chart showing what kinda shit you may be
excreting is actually really helpful with gastroenteritis.
In developing countries, malnutrition mixed with this disease can cause stunted growth.
In 2015 there are 2 billion cases with 1.3 million of those resulting in death.
Even in 2011 there were 1.7 billion cases.