Cyanobacteria Allergy in Lake Kineret

Clalit Health Services

Status: Unknown

Conditions: Itching; Nasal Stuffiness; Sneezing

Treatments: Procedure: Skin test with sterile extracts of different cyanobacteria

Study type: Interventional

Funder types: Other

Identifiers

NCT01693198

0172-12-MMC

Details and patient eligibility

About

People swimming or surfing in lake Kineret , sometimes complain of nasal stuffiness , sneezing and itching .Typically, it happens during or immediately after contact with the lake's water . The symptoms are compatible with immediate allergic reaction. Previous reports suggested a connection between similar symptoms and contact with different cyanobacteria (living in fresh water lakes). In this study we intend to prove the mechanism of these reactions. To prove the exact allergen that causes allergic rhinitis allergists perform skin tests with different suspected allergens. Likewise, we would like to perform skin tests to different proteins extracted from cyanobacteria collected in lake Kineret.

Enrollment: 200 estimated patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• age above 18
• exposed to Lake Keneret water by swiming or sirfing

Exclusion criteria

• age under 18
• pregnancy

Trial design

Primary purpose: Diagnostic

Allocation: N/A

Interventional model: Single Group Assignment

Masking: None (Open label)