Question4. : Describe the four types of hypersensitivity reactions?
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Question4. : Describe the four types of hypersensitivity reactions?
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- CASE STUDY 2 Sir Robert, a 42-year-old male, returned to his home in England after an adventure along the Nile Delta. On arrival at his estate, Sir Robert began to experience chills and a fever. The fever remained high for about 2 days and then subsided but spiked again after 5 days. He also noticed an abscess on his right leg, which had become swollen, inflamed, and hot. After a few days, his leg began to enlarge. At this point, Sir Thomas promptly set-up an appointment and went to the office of his physician at 4:00 p.m. the next day to seek medical treatment. On determining the patient's recent travel history and performing a physical examination, the physician ordered blood and stool samples for parasite study. In addition, the physician surgically opened the abscess and obtained a sample of the contents for parasitic examination. Laboratory examination of the abscess and stool specimens revealed no parasites. However, the Giemsa-stained slide of the blood contained suspicious…Explain natural/acquired immunity and active/passive immunity 4.3 Explain the basis of immunisation and evaluate its efficacy in a range of contexts 4.4 Explain essential differences between humoral and cellular responses as shown by B-lymphocytes and T-lymphocytes Case study 3: Many epidemiological studies showed that breastfed babies get sick less compared to babies who are partially breastfed or not breastfed at all. For example, researchers found that babies who are exclusively breastfed have fewer and less severe infections e.g., they have lower risk of ear, respiratory and gastrointestinal tract infections. Explain these study findings.