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In December 2020, Jean, a 30 year-old man, went to a concert in his town where more than 3 thousand people attended. Only 30% of the people in the concert were wearing mask, and there was not enough space to keep social distance. After 6 days, Jean started to develop fever and he lost the sense of smell and taste. Eight days after the party, he began to have difficulty breathing and was diagnosed with COVID-19. Let’s try to write the whole story about how the SARS-CoV2 invaded Jean’s body.
- After a few days of the infection, Jean’s adaptive immune system is ready to attack the remaining viral particles that were not efficiently destroyed by the innate immunity army.
- Is it possible for the immune system to eliminate the viruses without B cells? Why or why not?
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- In December 2020, Jean, a 30 year-old man, went to a concert in his town where more than 3 thousand people attended. Only 30% of the people in the concert were wearing mask, and there was not enough space to keep social distance. After 6 days, Jean started to develop fever and he lost the sense of smell and taste. Eight days after the party, he began to have difficulty breathing and was diagnosed with COVID-19. Let’s try to write the whole story about how the SARS-CoV2 invaded Jean’s body. SARS-CoV2 viral particles entered Jean’s nasal cavity and attached to the respiratory mucous membranes. Some mucosal barriers prevent part of the viral particles to penetrate the respiratory epithelium. Which are these barriers and how do they act? 2) Which cells are recruited from the bloodstream to the connective tissue (under the respiratory epithelium) to phagocyte the viral particles? Explain the recruitment mechanism. After a few days of the infection, Jean’s adaptive immune…In December 2020, Jean, a 30 year-old man, went to a concert in his town where more than 3 thousand people attended. Only 30% of the people in the concert were wearing mask, and there was not enough space to keep social distance. After 6 days, Jean started to develop fever and he lost the sense of smell and taste. Eight days after the party, he began to have difficulty breathing and was diagnosed with COVID-19. Let’s try to write the whole story about how the SARS-CoV2 invaded Jean’s body. After a few days of the infection, Jean’s adaptive immune system is ready to attack the remaining viral particles that were not efficiently destroyed by the innate immunity army. 3) Explain one mechanism of antibody action against viruses.In December 2020, Jean, a 30 year-old man, went to a concert in his town where more than 3 thousand people attended. Only 30% of the people in the concert were wearing mask, and there was not enough space to keep social distance. After 6 days, Jean started to develop fever and he lost the sense of smell and taste. Eight days after the party, he began to have difficulty breathing and was diagnosed with COVID-19. Let’s try to write the whole story about how the SARS-CoV2 invaded Jean’s body. 6)Is it possible for the immune system to eliminate the viruses without T cells? Why or why not? (This question will be graded based on your ability to think critically – even if the event described is
- In December 2020, Jean, a 30 year-old man, went to a concert in his town where more than 3 thousand people attended. Only 30% of the people in the concert were wearing mask, and there was not enough space to keep social distance. After 6 days, Jean started to develop fever and he lost the sense of smell and taste. Eight days after the party, he began to have difficulty breathing and was diagnosed with COVID-19. Let’s try to write the whole story about how the SARS-CoV2 invaded Jean’s body. SARS-CoV2 viral particles entered Jean’s nasal cavity and attached to the respiratory mucous membranes. Which cells are recruited from the bloodstream to the connective tissue (under the respiratory epithelium) to phagocyte the viral particles? Explain the recruitment mechanism.I go to the doctor with a head cold caused by adenovirus. My doctor gives me a prescription for methicillin an antibiotic. I go home and take all the medication but get worse and worse. Why is the drug not working? A- BI !!! US X₂ x² EE1) Ahh! COVID Zombies are attacking us and we have to run for our lives! This means our _________ is activated. Group of answer choices Sympathetic nervous system Parasympathetic nervous system Endocrine system Immune system 2) ou walked into your little sister’s room and it smelled strongly of marijuana smoke. You noticed it right away. After a few minutes, though, you stopped noticing the smell. This best illustrates: Group of answer choices Priming Transduction Schemas Sensory adaptation
- another friend you said that even though she had the flu shot last year she got terribly sick with the stomach flu over Thanksgiving break and missed most of her vacation. what is your explanation for this?Zane, a 26-year-old male, came upon a car accident and immediately started to help the victims, who were pinned in their car. There was blood all over the scene, and Zane acted without having any personal protective equipment. While helping the victims, he cut his arms in several places on the sharp metal and shards of glass. A few weeks later, he developed flu-like symptoms that persisted for several days. He went to his clinic and tested negative for influenza. Lab tests confirm the presence of HIV antibodies in Zane’s blood. Briefly describe why there are antibodies present.Your friend and you go to Central America for spring break where you have a great time (from what you can remember) except that you both get bitten by mosquitos constantly. Your poor friend comes down with malaria, has to take chloroquine, and is ill for weeks. You experience no health problems at all. You tell your friend, “Sickle-cell anemia runs in my family. That’s probably why I didn’t get malaria, too.” Your friend is not a super smart scientist like you so is utterly confused at your remark. Explain to him what you mean.
- In 1887 a strange nerve disease attacked the people in the Dutch East Indies. The disease was beriberi. Symptoms of the disease included weakness and loss of appetite, victims often died of heart failure. Scientists thought the disease might be caused by bacteria. They injected chickens with bacteria from the blood of patients with beriberi. The injected chickens became sick. However, so did a group of chickens that were not injected with bacteria. One of the scientists, Dr. Eijkman, designed a new experiment based on his own observations. Before the experiment, all the chickens had eaten whole-grain rice, but during the experiment, the chickens were fed polished rice. Dr. Eijkman researched this interesting case and found that polished rice lacked thiamine, a vitamin necessary for good health. State the question or problem that Dr. Eijkman investigated. What was the original hypothesis? What was the manipulated (independent) variable and the responding (dependent) variable? Write a…In 1887 a strange nerve disease attacked the people in the Dutch East Indies. The disease was beriberi. Symptoms of the disease included weakness and loss of appetite, victims often died of heart failure. Scientists thought the disease might be caused by bacteria. They injected chickens with bacteria from the blood of patients with beriberi. The injected chickens became sick. However, so did a group of chickens that were not injected with bacteria. One of the scientists, Dr. Eijkman, designed a new experiment based on his own observations. Before the experiment, all the chickens had eaten whole-grain rice, but during the experiment, the chickens were fed polished rice. Dr. Eijkman researched this interesting case and found that polished rice lacked thiamine, a vitamin necessary for good health. How would Dr. Eijkman test his new hypothesis?Why is it likely that your doctor might test you for meningitis if your neck is stiff and in pain (in addition to other symptoms)? Neck stiffness occurs when the meninges swell because the meninges and the muscles of your neck are connected Having a fever from meningitis can cause a swelling of the tissue in the neck When your circulation decreases as a result of meningitis, your neck doesn’t get enough blood flow The virus or bacteria will enter your neck muscles first