bathing with cold water should be the first measure for a person affected by dengue.

Dengue is a viral disease that leaves thousands of victims annually in Brazil. Regarding this annual epidemic that causes millions of dollars in losses, select the incorrect alternative.

The incorrect alternative is "bathing with cold water should be the first measure for a person affected by dengue." In fact, the first measure for a dengue virus carrier is to seek a doctor and follow their guidance. Bathing with cold water may temporarily relieve symptoms, but it is not the main measure to be taken. The other alternatives are correct: the use of acetylsalicylic acid (ASA) can increase the risk of bleeding in dengue patients, so it should not be used; hydration is essential for dengue treatment; dengue symptoms include fever, headache, eye pain, joint pain, and nausea; and mosquitoes of the Aedes genus are the vectors of dengue.

Vaccine is a biological preparation that provides active immunity to an individual against one or more diseases. The triple viral vaccine contains in its composition live viruses 'attenuated' to protect individuals against the following diseases:

Analyzing the following statements:

I. Vaccines can be produced from attenuated or killed microorganisms, neutralized toxins, or simply by using components of bacterial capsule, membrane, or wall.

II. Inactivated vaccine is one in which the virus is alive but unable to cause the disease, and attenuated vaccine is one that contains the virus killed by chemical or physical agents.

III. Malaria, tuberculosis, and tetanus are viral diseases; mumps, dengue, and measles are bacterial diseases, all controlled by vaccination.

IV. Immunization is a process by which immunity or protection against a specific infectious disease is acquired, either after acquiring the disease or through vaccine administration.

Choose the correct alternative.

Organisms formed basically by a protein capsule enclosing the genetic material, which, depending on the type of organism, can be DNA, RNA, or both. This definition refers to:

The definition of organisms formed by a protein capsule enclosing the genetic material, which can be DNA, RNA, or both, refers to viruses. Viruses are obligate intracellular parasites, meaning they need a host cell to reproduce. They are not considered cells because they lack typical cellular structures such as plasma membrane and organelles. The other organisms mentioned, such as nematodes, bacteria, fungi, and planarians, have more complex cellular structures and do not fit the given definition.

Viruses are biological entities that differ significantly from cells, as they are only capable of reproducing inside a host cell. Different viruses can cause diseases in animals and plants, impacting global health and agricultural production. Based on this information, (1) describe the main characteristics of viruses compared to cells, (2) explain the viral reproduction process within a host cell, and (3) cite at least two human viral diseases and their possible impacts on human health.

Question bank: Virus

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