Biology, asked by manavjaison, 1 year ago

1. how do heptitis B spread?
2. why is rabies also termed as hydrophobia?
3. name the causative agent of malaria.
4. if a pregnant women is suffering from AIDS, how will the child get infected with
the same disease via genesis or placenta?
5. give name of two instinct vectors and their disease.
6. state the effect of chronic disease on our health.
7. what is the direct transmission of disease? name any four disease which are
transmitted directly.
8. why do antibiotic play no role in curing influenza? why is it difficult to make
antiviral drugs?
9. why is it advisable to wear full sleeved clothes while sleeping?
10. why is immune system essential for our health?
11. why do some children fall ill frequently than others living in the same locality?
12. why is AIDS considered to be a syndrome and not a disease?

Answers

Answered by swapnil756
9
Hello friend
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1. Hepatitis B is spread when blood or other fluid infected with Hepatitis B virus enters to a body of a person.
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2.  because the person infected with rabies is unable to swallow, especially liquid, and has the sensation of choking
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3. Plasmodium malariae
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4.
genesis

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5. malaria and dengue fever

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6. Some chronic diseases are disabling or require major lifestyle changes. Other diseases are managed over time. In most cases, a chronic disease affects every aspect of a person’s life. This can include physical and mental health, family, social life, finances, and employment. Chronic diseases can also shorten a person’s life.
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7. Infectious diseases are transmitted from person to person by direct or indirect contact.
Certain types of viruses, bacteria, parasites, and fungi can all cause infectious disease.

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8.  You may be told you cannot use an antibiotic for a viral infection because they are ineffective and may lead to “antibiotic resistance”.
antibiotics cannot kill viruses because viruses have different structures and replicate in a different way than bacteria.
It is difficult to make the antiviral drugs because, viruses use the host cell's to replicate. This make it difficult to find targets for the drug that would interfere with the virus without also harming the organism's cells.

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9. what I would suggest is a long sleeve t-shirt or onesie under a heavier weighted sleep sack (fleece or velboa) along with a pair of socks. The sleep sack would take the place of a blanket and sheet that we grownups would normally use

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10. The immune system of our body is a defence mechanism to fight against pathogenic microbes. It has cells that are specialized to kill infecting microbes and keep our body healthy. If the body's immune system is strong, it can easily fight pathogens, keeping us healthy.

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11.
Due to poor immune system, some children fall ill frequently. Balanced diet and proper nutrition for healthy body is required to have a strong immune system.

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12. The virus damages th immune system of the body . Due to this the body can no longer fight off even the minor diseases . Instead, every minor infection can become a severe pneumonia or minor gut infection can become severe diarrhoea with blood loss. therefore , it is known as syndrome.
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Hope it will help u

Answered by Anonymous
5
Hi dear !
____________________________________________________________1.The hepatitis B virus is transmitted when blood, semen or another bodily fluid from an infected person enters the body of another individual.The hepatitis B viruses cannot be spread by holding hands, sharing eating utensils, kissing, hugging, coughing, sneezing, or breastfeeding.

2. hydrophobia was the old name of Rabies .the animal's throat muscles become partially paralyzed and they're unable to swallow/drink .

3. A parasite named - Plasmodium 

4. AIDS can be transfer to the baby . As AIDS is a STD ( sexually transmitted disease so it affect the immune system ) But after delivery baby can have the syndrome too 

5. Dengue - Aedes aegypti and Aedes albopictus species.

Malaria - 30–40 commonly transmit parasites of the genus Plasmodium, which cause malaria in humans in endemic areas.

6.chronic diseases have a long lasting effect on our body for example : Tuberculosis and cancer 

7. Direct contact transmission occurs when there is physical contact between an infected person and a susceptible person. 

Direct contact infections spread when disease-causing microorganisms pass from the infected person to the healthy person via direct physical contact with blood or body fluids. Examples of direct contact are touching, kissing, sexual contact, contact with oral secretions, or contact with body lesions.

Many illnesses spread through contact transmission. Examples are chicken pox, common cold, conjunctivitis (Pink Eye), Hepatitis A and B, herpes simplex (cold sores), influenza, measles, mononucleosis, Fifth disease, pertussis, adeno/rhino viruses, Neisseria meningitidis and mycoplasma pneumoniae.

8. Yep ! A antibiotic cant cure a diseases cause by virus .

As virus is neither living nor non living it is difficult to identify whenever the virus is in the host body and also virus have nothing in it rather than Genomic RNA and body coat so there is only some of the parts in a virus which we can identify to kill it . also we don't know in which situation it is living so it is difficult to make an antiviral 

9. because at night any vector can infect us or the temperature of our body got imbalance and then we can fall sick

10. Immune system is essential  as it provides the safety for our body it recruits white blood cells to kill foreign cells which are unnecessary to our body . 

11. It is due to weak immune system or they wont got proper vaccines when they borne . 

12. AIDS is a syndrome because it cant be cured . And it has no. of symptoms so we cant identify it easily . in this the immune system of any person got very weak and he or she can die in a short time 

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