алергична реакция от ухапване от насекомо
https://www.mediafire.com/file/2ztj028vmcesv9v/288204.pdf/file
Insect Chew Or Sting What You Want To Know The parasites, which feed on human blood, are more than likely to chew during periods of time when people are motionless. That means they're most likely to chew overnight