How Sick Can You Get from Red Tide

For beachgoers, coastal residents and others exposed to Karenia brevis (K. brevis) algal blooms, the red tide’s toxins can irritate the eyes, nose, throat and respiratory system. Symptoms can be pronounced in those with underlying chronic respiratory conditions, including asthma, emphysema and COPD.

What happens if you breathe in red tide?

It’s proved deadly for marine life and makes for an ugly and smelly trip to the beach. Inhaling red tide toxins called brevetoxins can cause respiratory irritation like coughing, sneezing, tearing and itchy throat.

How long does red tide sickness last?

CAUTION: People with severe or chronic respiratory conditions (such as bronchitis, emphysema or asthma) are cautioned to avoid red tide areas. Generally, symptoms are temporary and disappear within hours (once exposure is discontinued). Most people find air-conditioned facilities decrease symptoms quickly.