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Active immunity involves the production of antibodies (by B lymphocytes) and cell-mediated response (with T lymphocytes). It renders relatively longer immunity (compared to passive immunity). Active immunity may be natural or artificial.
This type of active immunity is said to be natural because the immunity is induced not by deliberate exposure (such as vaccination). The individual has developed immunity to a live pathogen by having been exposed to it and by developing a primary immune response that led to immunological memory.
What else can I help you with?
Are natural disasters natural occurrences?
Yes, natural disasters are natural occurrences. That is what the word "natural" means - not resulting from the activities of people.
What are the economic activities in Siberia?
Siberia has manufacturing, oil and natural gas.
What is primary economics?
Primary economic activities are those activities where natural resources are extracted from the earth. Examples of primary activities are mining, farming and fishing.
What is Primary economic activity?
Primary economic activities are those activities where natural resources are extracted from the earth. Examples of primary activities are mining, farming and fishing.
Are natural disasters caused by human?
Natural disasters such as earthquakes, hurricanes, and tsunamis are caused by natural processes and phenomena, not by human activities. However, human activities can contribute to the severity or impact of some natural disasters, such as deforestation increasing the risk of landslides or urban development increasing the damage from floods.
What is the Portuguese corporation that engaged in activities such as natural gas supply?
galp
What Portuguese company is involved in activities such as natural gas supply?
Galp
Is succession always caused by natural events?
No, succession can also be caused by human activities such as deforestation, agriculture, or urban development. These activities can disrupt the natural processes of succession and result in changes to the ecosystem.
What are some benefits of incorporating natural toys for toddlers into their playtime activities?
Incorporating natural toys for toddlers can benefit their playtime activities by promoting creativity, sensory exploration, and connection to the natural world. These toys can also be safer, more environmentally friendly, and encourage imaginative play.
Why do you need natural gas?
we use it for every day activities and personal issues
What are the major economic activities in Oklahoma?
Oil, natural gas and potential ethanol resources
What a natural biorhythm?
A natural biorhythm is a cycle of regularly recurring activities in a person's life. The cycles can be mental, physical, or emotional in nature.
