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AMI Day 6

Science - Mr. Welch

AMI Day 6 (students with modifications do not do question 6)

INSTRUCTIONS:  Read the passage and examine the graph.  Answer questions 1-6 on notebook paper and have them ready to turn in on the first day classes at Alpena School District resume.

Coronavirus disease 2019 (COVID-19) is an infectious disease caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).  The disease has spread globally since 2019, resulting in the 2019–20 coronavirus pandemic.  Common symptoms include fever, cough, and shortness of breath. Muscle pain, sputum production and sore throat are some of the less common symptoms.  While the majority of cases result in mild symptoms, some progress to pneumonia and multi-organ failure.  The case fatality rate is estimated at between 1% and 5% but varies by age and other health conditions.

The infection is spread from one person to others via respiratory droplets, often produced during coughing.  Time from exposure to onset of symptoms is generally between two and 14 days, with an average of five days.  The standard method of diagnosis is by reverse transcription polymerase chain reaction (rRT-PCR) from a nasopharyngeal swab or sputum sample. Antibody assays can also be used, using a blood serum sample.  The infection can also be diagnosed from a combination of symptoms, risk factors, and a chest CT scan showing features of pneumonia.

Recommended measures to prevent the disease include frequent hand washing, maintaining distance from other people, and not touching one's face.  The use of masks is recommended for those who suspect they have the virus and their caregivers, but mask use is not recommended for the general public.  There is no vaccine or specific antiviral treatment for COVID-19; management involves treatment of symptoms, supportive care, and experimental measures.

The World Health Organization (WHO) has declared the 2019–20 coronavirus outbreak a pandemic and a Public Health Emergency of International Concern (PHEIC).  Evidence of local transmission of the disease has been found in multiple countries across all six WHO regions.

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  1. According to the graph, the novel coronavirus has exhibited steady growth from January to March 2020.  At what point does the highest rate of increase in cases of COVID-19 occur?
    1. Mid-February
    2. Late January
    3. Mid-March
    4. Early March
  2. The novel coronavirus is not a new virus.  COVID-19 has been around for years.  Using the graph, how many confirmed cases could we expect worldwide at any given time?
    1. 42,000
    2. 126,000
    3. 300
    4. 1,000
  3. Which of the following situations would most likely be the cause of COVID-19 spreading?
    1. A fever of low grade over the course of 5 days.
    2. An uncovered cough that scatters droplets of water.
    3. A sneeze that sprays droplets over an area.
    4. Individuals touching each other’s face as a greeting that is seen in some countries.
  4. COVID-19 is a viral infection.  Which statement below best describes the cure for this pathogenic agent?
    1. There is no specific vaccine or treatment that can cure an infected person.  Management of symptoms is the only recourse for an individual with coronavirus-19.
    2. Individuals can practice frequent hand washing.
    3. People may maintain a safe distance from others and avoid being in crowds.
    4. Humans should not touch their face particularly eyes, nose and mouth.
  5. COVID-19 is a novel virus in that it has reached pandemic proportion.  Part of this is due to its ability to incubate for several days while the virus is being spread by the infected person.  What is the average number of days the virus may incubate in a human?
    1. 21
    2. 14
    3. 2
    4. 5
  6. Calculate the percent increase in confirmed cases from the beginning of January to the end of March.