A primary reason for needing a new vaccine for influenza each year is that there could be mutation of surface proteins leading to a new outbreak
<h3>What is antigenic drift?</h3>
Antigenic drift is a phenomenon that causes small changes or mutations in the genes of influenza viruses leading to changes in their surface proteins of the virus, which are HA (hemagglutinin) and NA (neuraminidase).
For this reason, new influenza vaccines are produced yearly to alter the effects that may emerge as a result.
Thus, a primary reason for needing a new vaccine for influenza each year is that there could be mutation of surface proteins leading to a new outbreak
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Answer:
The answer is B cranial nerves
Explanation:
The cranial nerves are part of the peripheral nervous system.
The endotracheal tube of 2.5mm can be used to intubate a newborn with an estimated gestational age of 26 weeks.
<h3>What is an endotracheal tube?</h3>
Tube constructed of polyvinyl chloride, placed between the vocal cords through the trachea is referred to as endotracheal tube.
It aids to give oxygen and gases to the lungs and protects it from contamination, such as gastric contents or blood.
Typically, the endotracheal tube of 2.5mm can be used to intubate a newborn with an estimated gestational age of 26 weeks.
Thus, the size of the tube should be of 2.5mm diameter.
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A patient comes into the sanatorium frequently with proceedings of ache. Low back pain is continual benign pain in an affected person.
Physiologic responses include tachycardia, increased respiratory charge, and hypertension. Behavioral responses consist of splinting, grimacing, moaning or grunting, distorted posture, and reluctance to move. A loss of physiologic responses or a scarcity of behaviors indicating aches might not imply there is a lack of aches.
The most effective clinically used capsules for producing brief analgesia and alleviation from pain are the opioid circle of relatives, which incorporates morphine, and heroin.
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