Related Concept Videos
01:25Increased Body Temperature
A body temperature above 38°C (100.4 °F) is known as fever or pyrexia, and a person with fever is termed 'febrile.' Typically, the hypothalamus, a part of the brain that acts as the body's thermostat, regulates body temperature through a thermoregulatory setpoint. It receives signals from cold and warm thermal receptors throughout the body and adjusts the body's temperature accordingly. Fever occurs when this hypothalamic setpoint is altered, usually in response to an infection or illness.
01:22Methods of reducing fever
The signs and symptoms of fever include hot and dry skin, flushed face, thirst, muscle aches, anorexia, headache, tachycardia, tachypnea, and fatigue. Elevated body temperature is reduced using two methods: pharmacological and nonpharmacological. Proper identification and treatment of the root cause of a fever is of utmost importance.
Pharmacological Methods of Reducing Fever:
Pharmacological Methods of Reducing Fever:
01:25Types of Fever
Fever can be triggered by several factors, including infections, nervous system disorders, certain cancers, blood diseases like leukemia, embolism, thrombosis, heatstroke, dehydration, surgical trauma, crushing injuries, and allergic reactions.
Here are the different types of fever:
Here are the different types of fever:
01:26Patterns of Fever
Before understanding the types and patterns of fever, it is essential to know its phases.
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Published on: October 9, 2017
Fever in honeybee colonies.
P T Starks1, C A Blackie, T D Seeley
1Section of Neurobiology and Behavior, Cornell University, Ithaca, NY 14853-2702, USA. starks_p@uclink.berkeley.edu
Die Naturwissenschaften
|July 7, 2000
Summary
Honeybees exhibit a "brood-comb fever" to fight the pathogen Ascosphaera apis before larvae die. This collective immune response in honeybee colonies mirrors fever in animals.
Area of Science:
- Animal Behavior
- Insect Pathology
- Social Immunity
Background:
- Honeybees (Apis spp.) regulate nest temperature for brood development and defense.
- Elevated nest temperatures are crucial for honeybee colony health and survival.
- Colonial thermoregulation plays a key role in honeybee social immunity.
Purpose of the Study:
- To investigate the defensive role of elevated nest temperature in honeybees against pathogens.
- To determine if honeybees exhibit a fever response to colonial infection.
- To explore the mechanisms and implications of honeybee brood-comb fever.
Main Methods:
- Observing honeybee colony responses to infection by Ascosphaera apis.
- Monitoring nest temperatures during pathogen exposure.
Main Results:
- Honeybees generate a "brood-comb fever" in response to Ascosphaera apis infection.
- This fever response is initiated before visible symptoms or larval death.
- The findings suggest early pathogen detection or larval signaling.
Conclusions:
- Honeybee nest thermoregulation serves an additional defensive function against specific pathogens.
- Brood-comb fever represents a sophisticated form of collective immunity in honeybees.
- This phenomenon is a compelling instance of convergent evolution with fever responses in other animals.