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B ইউনিট : ২০২০-২০২১ || চট্টগ্রাম বিশ্ববিদ্যালয় || 2020

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Influenza, or flu, is a virus that attacks the respiratory system. The flu virus is highly contagious: when an infected person coughs, sneezes or talks, respiratory droplets are generated and transmitted into the air, and can then be inhaled by anyone nearby. Additionally, a person who touches something with the virus on it and then touches his or her mouth, eyes or nose can become infected. Before COVID-19, the most severe pandemic in recent history was the 1918 influenza virus, often called "the Spanish Flu". The virus infected roughly 500 million people - one-third of the world's population - and caused SO million deaths worldwide (double the number of deaths in World War I). In the United States, a quarter of the population caught the virus, 675,000 died, and life expectancy dropped by 12 years. With no vaccine to protect against the virus, people were urged to isolate, quarantine, practice good personal hygiene, and limit social interaction. The first observations of illness and mortality were documented in the United States (in Kansas) in March 1918 and then in April in France, Germany and the United Kingdom. To maintain morale, World War I censor minimized these early reports. Newspapers were free to report the epidemic'seffects in neutral Spain, such as the grave illness of King Alfonso XIII, and these stories created a false impression of Spain as especially hard hit. This gave rise to the name "Spanish Flu". Until February 2020, the 1918 epidemic was largely overlooked in the teaching of American history, despite the ample documentation at the National Archives and elsewhere of the disease and its devastation. The 100-year-old pictures from 1918 that just months ago seemed quaint and dated now seem oddly prescient.

to his strongly
to heat very hard
to hardly suffer
to be adversely affected
it originated in Spain
Spain was a neutral country in World War I
King Alfonso XIII of Spain was ill
of the false impression of Spain as hard hit
it was beyond censorship
it decreased life expectancy
it was overlooked in American history lessons
it infected one third of world's population
cannot be controlled by personal hygiene
examples: Covid-19 and 1918 in influenza
communicable
vaccine can protect against the virus
the smaller of which
the smaller of them
the smallest of that
the smallest of which
to slay away from the hard task
to take preparation for the worst
to hire friends for doing the job
to calm down and behave normally
nor does he cheat people
he doesn't cheat people
nor he cheats people
neither he cheats people
was talking, were
can talk, were
was talking, was
were talking, was
figuring out their income tax return
to figure out their income tax return
figure out their income tax return
to have figured out their income tax
Education system has variously been affecting the education system.
Education system has affected in various ways by Covid-19 pandemic.
Covid-19 pandemic has been affecting the education system variously.
Covid-19 pandemic has affected the education system in various ways.