The Alameda County Public Health Department sends out Health Alerts, Advisories, and Updates regarding communicable disease outbreaks, immunization updates, and other public health concerns to Alameda County clinicians and other partners. See recent releases below.

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Health Alerts

ALERT conveys the highest level of importance; warrants immediate action or attention.
ADVISORY provides important information for a specific incident or situation; may not require immediate action.
UPDATE provides updated information regarding an incident or situation; unlikely to require immediate action.

September 05, 2012


Hantavirus Guidance for Physicians with Patients Presenting with Concerns or Symptoms of Hantavirus Pulmonary Syndrome

The California Department of Public Health is collaborating with the Centers for Disease Control (CDC) and the National Park Service to investigate the outbreak of hantavirus in recent visitors to Yosemite National Park. CDPH issued this more detailed health alert and guidance for physicians that supports and builds on the previous ACPHD health alert.

August 31, 2012


Hantavirus Cardiopulmonary Syndrome in California

The California Department of Public Health has reported six confirmed cases of Hantavirus Cardiopulmonary Syndrome (HCPS) in visitors who stayed in Yosemite National Park from early June to mid-July 2012. Clinicians are asked to educate patients that HCPS is a rare disease that is prevented by avoiding contact with rodents and excreta. Clinicians may consider testing for HCPS in patients with fever, severe pulmonary disease and a history of contact with rodents in rural areas. Suspected HCPS cases should be reported to Alameda County Public Health Department at 510-267-3250.

May 06, 2012


Hot Summer Weather Advisory

The summer season with its potential for fluctuating high temperatures is approaching. Health care facilities are reminded that the elderly and other health compromised individuals are more susceptible to extremes in temperature and dehydration.

January 25, 2012


Novel H3N2 Influenza Virus: Increaed Surveillance

California Department of Public Health (CDPH) is requesting increased surveillance and testing for influenza in children less than 18 years of age. Since July 2011, a novel swine-origin triple reassortant H3N2 influenza virus (S-OtrH3N2) has been reported in 5 states with a total of 12 cases. California has no cases but heightened surveillance is being requested.

October 05, 2011


Healthcare Providers: Mumps Health Alert

Alameda County has 4 confirmed and 3 probable cases of Mumps that are epidemiologically linked. Individuals are at increased risk for mumps if they are unvaccinated. Mumps should be considered in the differential diagnosis even in fully immunized individuals.

August 18, 2011


Pediatric Health Providers: Fatal Vaccine-Preventable Pneumococcal Disease

Immunize all children younger than 5 years of age who have not yet received 13-valent pneumococcal conjugate vaccine.

May 20, 2011


FDA Warns Not to Feed SimplyThick to Premature Infants

Do not feed the thickening product called SimplyThick to infants born before 37 weeks because it may cause a life-threatening condition.

May 03, 2011



Since January 2011, 11 cases of measles have been reported in California. A nationwide increase in the numbers of reported measles cases has also been noted this year. As in recent years, nearly all of the cases are known to have involved recent travel to Europe or Asia, or contact with international travelers (including via transit through U.S. international airports). Some of the cases have been intentionally unvaccinated children.

May 19, 2010


Mercury Poisoning Linked to Face Cream

The California Department of Public Health (CDPH) issued a Health Alert May 19, 2010 notifying persons who may be using unlabeled, nonprescription face creams from Mexico for the purpose of skin lightening, fading freckles and age spots, and preventing acne that these products contain very high levels of mercury, are harmful to your health, and should not be used.

February 23, 2010


Measles Health Alert

Four cases of measles have been diagnosed in the San Francisco Bay Area in the past two weeks. Two cases occurred in two unvaccinated toddlers who traveled to Europe and Asia; one case in an older adult who traveled to Europe; and the fourth case was an unvaccinated adult with no travel history.

July 23, 2009


Novel H1N1 Flu

July 20, 2009


Novel H1N1 Flu

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