Vaccines produce a primary response in which memory cells exist developed that respond rapidly in a second exposure.
<h3>Can a child vaccinated for chicken pox get it?</h3>
Some individuals who are vaccinated against chickenpox may still contract the disease. However, the symptoms exist usually milder with fewer or no blisters (they may include just red spots) and mild or no fever. You should not be vaccinated against chickenpox if you: Exist moderately to severely ill at the period of vaccination.
Vaccines produce a primary response in which memory cells exist developed that respond rapidly in a second exposure. Vaccines work by teaching the body's immune system to determine and protect against harmful viruses or bacteria before acquiring an infection and decrease the chance of acquiring certain infectious diseases.
A vaccine exists in a biological preparation that furnishes actively developed immunity to a particular infectious disease. A vaccine generally includes an agent that resembles a disease-causing microorganism and exists often created from weakened or killed conditions of the microbe, its toxins, or one of its surface proteins.
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Answer:
The most important properties of an ideal drug are: effectiveness, safety, and selectivity. If the drug is not effective, it should not be used. There is no such drug as safe drug: all drugs can cause harm. There is no such thing as selective drug: all drugs can cause side effects.
Answer:
The answer to the question: Electrical impulses or action potentials (AP) cannot propagate across a synaptic cleft. Instead, neurotransmitters are used to communicate at the synapse, and re-restablish the AP in the post-synaptic cell, would be, true.
Explanation:
Essentially, although the CNS, PNS and ANS (Central Nervous System, Peripheral Nervous System and Autonomic Nervous System) are electrical systems, that use the electricity generated through action potentials, that in turn, are created by the exchange of electrically charged ions from within and without the neuronal cells, these electrical impulses do not pass the pre-synaptic, and post-synaptic cleft. Instead, once an AP has reached the terminal end of the pre-synaptic neuron, neurotransmitters are released by this one, into the cleft, which are then taken up by the receptors present in the post-synaptic neuron. Depending on the type of transmitter released, there will be an inhibitory or excitatory effect. Then, with the transmitter attached, the post-synaptic neuron will depolarize and a new AP will be generated in the post-synaptic neuron, which will carry on. Messages, thus are transmitted that way between neurons, and also, between the nervous system and the organs they influence.
Answer:
i think no try another one
