Five former nurses are suing South Peninsula Hospital in Homer, Alaska, alleging that they were forced out of their positions based on age, according to radio station KBBI.

Indiana (Pa.) Regional Medical Center and the union representing 380 registered nurses and nurse anesthetists are accusing each other of unfair labor practices as a contract dispute between the parties continues, according to the Indiana Gazette.

Registered nurses at Valencia, Calif.-based Henry Mayo Newhall Hospital have issued a strike notice, according to radio station KHTS.

Here are four notable labor strikes reported by Becker's Hospital Review so far this year:

The University of California’s largest employee union is calling for a boycott of school speaking engagements, according to AFSCME Local 3299.

Mental health patients — who include the families of suicide victims — plan to come together April 17 outside Kaiser Permanente headquarters in Oakland, Calif., to voice care concerns and demand a face-to-face meeting with chairman and CEO Bernard Tyson, according to the National Union of Healthcare Workers.

Registered nurses at Valencia, Calif.-based Henry Mayo Newhall Hospital will meet April 15 to discuss how they want to move forward since they have not been able to agree on a contract with hospital administrators, according to The Santa Clarita Valley Proclaimer.

Kaiser Permanente Colorado has begun preliminary talks with its labor unions about workforce needs after the layoff of 400 workers in the last six months, according to The Denver Post.

Yale-New Haven (Conn.) Hospital has signed a new contract with the union that represents its cafeteria workers, according to the Yale Daily News.

Nurses at St. Joseph Regional Medical Center in Lewiston, Idaho, voted April 11 to join the International Brotherhood of Teamsters union, according to a Lewiston Tribune report.  

Nurses at Stanford (Calif.) Health Care and Packard Children's Hospital in Palo Alto, Calif., have voted for the option to strike,  according to the East Bay Times.

Becker's Hospital Review reported the following hospital-union events — including protests, elections and contract agreements — after March 29.

A union is suing Beaver, Pa.-based Heritage Valley Health System, accusing the integrated delivery network retaliated against registered nurses in response to a grievance filed by the union, according to The Times.

University of California service and patient care workers will strike April 10 over alleged illegal conduct by the school.

The NYC Hospital Alliance and New York State Nurses Association have reached a tentative contract agreement affecting more than 10,000 New York City nurses.

Dozens of workers from Oakland, Calif.-based Kaiser Permanente will protest April 9 the healthcare giant's care of Medicaid patients, according to a union news release.

Nurses at Alameda (Calif.) Hospital and San Leandro (Calif.) Hospital, both part of the Alameda Health System, picketed April 3 to raise awareness about contract talks, according to a Bay City News report published by patch.com.

Marin General Hospital in Greenbrae, Calif., has settled labor disputes with engineers and imaging technicians, according to a Marin Independent Journal report.

About 50 resident and intern physicians at Highland Hospital in Oakland, Calif., walked off the job for 20 minutes April 3 to protest hospital administrators' contract proposals, The Mercury News reports.

Healthcare workers at Los Angeles-based Cedars-Sinai Medical Center revealed a series of billboards that highlights profits and CEO pay at the hospital.