prepare a speech to be given in your school on the topic... Prevention and Causes of the Pandemic
Answers
You probably know that COVID-19, the illness caused by the new coronavirus SARS-CoV-2, is a pandemic. But what’s the difference between a pandemic, an epidemic, and an outbreak? And when does a disease become a public health concern? Here are the basics of the spread of serious diseases and what you can do to protect yourself, your family, and your community.
Let’s start with the meanings of each word.
An outbreak is when an illness happens in unexpected high numbers. It may stay in one area or extend more widely. An outbreak can last days or years. Sometimes, experts consider a single case of a contagious disease to be an outbreak. This may be true if it’s an unknown disease, if it’s new to a community, or if it’s been absent from a population for a long time.
An epidemic is when an infectious disease spreads quickly to more people than experts would expect. It usually affects a larger area than an outbreak.
A pandemic is a disease outbreak that spreads across countries or continents. It affects more people and takes more lives than an epidemic. The World Health Organization (WHO) declared COVID-19 to be a pandemic when it became clear that the illness was severe and that it was spreading quickly over a wide area.
The number of lives lost in a pandemic depends on:
How many people are infected
How severe of an illness the virus causes (its virulence)
How vulnerable certain groups of people are
Prevention efforts and how effective they are
The WHO’s pandemic alert system ranges from Phase 1 (a low risk) to Phase 6 (a full pandemic):
Phase 1: A virus in animals has caused no known infections in humans.
Phase 2: An animal virus has caused infection in humans.
Phase 3: There are scattered cases or small clusters of disease in humans. If the illness is spreading from human to human, it’s not broad enough to cause community-level outbreaks.
Phase 4: The disease is spreading from person to person with confirmed outbreaks at the community level.
Phase 5: The disease is spreading between humans in more than one country of one of the WHO regions.
Phase 6: At least one more country, in a different region from Phase 5, has community-level outbreaks.
PLS MARK BRAINLIEST
Answer:
More than 9.1 million cases of COVID-19 have now been reported to WHO, and more than 470,000 deaths.
In the first month of this outbreak, less than 10,000 cases were reported to WHO. In the last month, almost 4 million cases have been reported.
We expect to reach a total of 10 million cases within the next week.
This is a sober reminder that even as we continue research into vaccines and therapeutics, we have an urgent responsibility to do everything we can with the tools we have now to suppress transmission and save lives.
One of the most effective ways of saving lives is providing oxygen to patients who need it.
Several news reports published today have highlighted the vital role of oxygen in treating patients with severe and critical COVID-19.
This has been an area of intense focus for WHO since the beginning of the pandemic.
Patients with severe and critical COVID-19 cannot get enough oxygen into their blood by breathing normally. They need higher concentrations of oxygen and support to get it into their lungs.
Left untreated, severe COVID-19 deprives cells and organs of the oxygen they need, which ultimately leads to organ failure and death.
Medical oxygen is produced using oxygen concentrators, which extract and purify oxygen from the air.
WHO estimates that at the current rate of about 1 million new cases a week, the world needs about 620,000 cubic meters of oxygen a day, which is about 88,000 large cylinders.
However, many countries are now experiencing difficulties in obtaining oxygen concentrators.
80 percent of the market is owned by just a few companies, and demand is currently outstripping supply.