Why is it hard to cure Common Cold? | #aumsum

Why is it hard to cure Common Cold? | #aumsum

It’s AumSum Time. Why is it hard to cure common cold? Because common cold wears an invisibility
cloak. No. Firstly, there are more than 200 viruses which
cause common cold. Now, developing 200 vaccines for 200 viruses
is impractical. Secondly, developing a single vaccine for
all 200 viruses is proving to be. Complex, time consuming and expensive as a
lot of R&D is required. Thirdly, we can’t make antivirals to kill
viruses. Just like we make antibiotics to kill bacteria. Why? Because antibiotics attack the bacteria’s
protective cell walls. But as viruses don’t have any cell wall, antivirals
will be useless. However, there might be some good news. Now, a virus survives in human body by hijacking
a protein found in human cells. Researchers have developed a compound which
inhibits the virus from doing so. But as the compound targets human cells, more
research is needed to test its safety. Why is it hard to cure cancer? Cancer is not a single disease. It is a name given to a collection of diseases
that have some common characteristics. Cancer usually begins when there is a sudden
change. Or mutation in the genes present in our cells. This leads to uncontrolled cell division. Now, it is hard to cure cancer because. Every cancer is caused by a different set
of genetic mutations. In different types of cells. Hence, it is a different disease each time
due to which. A treatment which works for an individual
doesn’t necessarily work for the other. Now, cancer cells can be killed with treatments
like chemotherapy or radiation. However, sometimes these treatments may not
kill all the cancer cells. Risking a cancer relapse. Moreover, such treatments even harm healthy
cells of our body. Cancer cells can even metastasize i.e., they
can spread to different body parts. And start growing there, thus making it difficult
to eradicate cancer completely. In addition to this, many cancers are diagnosed
at very late stages. Which makes treatment less likely to succeed. Thus reducing the chances of survival. Why is it hard to cure Alzheimer’s disease? Alzheimer’s disease is an irreversible, progressive
brain disorder. It basically occurs when proteins in the brain
malfunction. And clump together forming plaques and tangles. These plaques and tangles block communication
in between brain cells. And even cause cell death. Thus leading to memory loss, mood changes,
hallucinations, etc. Now, it is hard to cure Alzheimer’s because
symptoms of the disease. Begin to show when it has almost irreversibly
damaged the brain. Also, finding candidates for effective clinical
trials is difficult. Because there is no method to identify people
with the disease at initial stages. Thus, it is hard to test the medications and
check whether they work or not. In addition to this, Alzheimer’s affects different
people in different ways. Hence, a drug which is somewhat effective
on a patient suffering from Alzheimer’s. Might not work on another patient. In short, due to a lack of fundamental understanding
of the disease. We are unable to cure Alzheimer’s. Why is it hard to cure HIV / AIDS? HIV or human immunodeficiency virus infects
the cells of immune system. Causing them to produce more copies of the
virus and then eventually die. When too many immune cells of our body die. And our immune system is unable to fight off
diseases. Then we are said to have AIDS or Acquired
immunodeficiency syndrome. Now, coming back to the question. It is hard to cure HIV or AIDS. Because HIV has the ability to mutate extremely
quickly. Hence, a drug which is somewhat effective
on a patient suffering from HIV or AIDS. Might not work on another patient because
of the mutated HIV. Now, there are certain antiretroviral drugs. That prevent the cells from producing new
copies of HIV. Thus controlling the HIV levels in our body. But, it is hard to completely eradicate HIV. Because the virus integrates its DNA into
our cell’s DNA. Hence, if we stop taking the drugs. The DNA of the virus can again cause the cell
to produce copies of the virus. And thus, we are unable to control the level
of HIV infected cells in our body.


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