Question

what is fewer explain?what are it's causes

Answer 1

an abnormally high body temperature, usually accompanied by shivering, headaches, and in severe instances, delirium is called fever

the causes of fever are
Fever can be caused by a number of factors: an infection, such as strep throat, flu, chickenpox, or pneumonia. rheumatoid artritis

Answer 2

ʜᴇy ᴜꜱᴇʀ

ʜᴇʀᴇ ɪꜱ yᴏᴜʀ ᴀɴꜱᴡᴇʀ :-

_______________________________

ꜰᴇᴡᴇʀ ɪꜱ ᴛʜᴇ ᴅɪꜱᴇᴀꜱᴇ ɪɴ ᴡʜɪᴄʜ ᴛʜᴇ ʙᴏᴅy ᴛᴇᴍᴩᴀʀᴀᴛᴜʀᴇ ʀɪꜱᴇꜱ ꜰʀᴏᴍ ʀᴏᴏᴍ ᴛᴇᴍᴀᴩᴀʀᴀᴛᴜʀᴇ

ꜰᴇᴡᴇʀ ᴍᴀy ʙᴇ ᴄᴀᴜꜱᴇᴅ ʙy ɪɴꜰᴇᴄᴛɪᴏɴ . ɪᴛ ɪꜱ ᴀ ᴠɪʀᴀʟ ᴅɪꜱᴇᴀꜱᴇ . ɪᴛ ᴄᴀɴ ᴀʟꜱᴏ ᴄᴀᴜꜱᴇᴅ ʙy ᴄʜᴀɴɢᴇ ɪɴ ᴡᴇᴀᴛʜᴇʀ ᴏʀ ꜱᴜʀʀᴏᴜɴᴅɪɴɢ .ꜰᴇᴡᴇʀ ɪꜱ ᴀ ɪɴɪᴛɪᴀʟ ꜱᴛᴀɢ ᴏꜰ ᴍᴀɴy ᴅɪꜱᴇᴀꜱᴇꜱ ꜱᴜᴄʜ ᴀꜱ ᴩɴᴇᴜᴍᴏɴɪᴀ ᴇᴛᴄ.

ꜱyᴍᴩᴛᴏᴍꜱ :-
1. ʜᴏᴛ ʙᴏᴅy
2. ʜᴇᴀᴅᴀᴄʜᴇ
3. ᴇɴᴇʀɢy ʟᴇꜱꜱ ʙᴏᴅy .