Baby Is Second Confirmed Case of Measles in Orange County in 2019

Measles Outbreak in an Unvaccinated Family unit and a Possibly Associated International Traveler — Orange Canton, Florida, December 2012–January 2013

, MPH1, Benjamin G. Klekamp, MSPH1, Edhelene Rico, MPH2, Alvaro Mejia-Echeverry, MDtwo (Author affiliations at end of text)

The Florida Section of Wellness in Orangish County (DOH-Orange) was notified by a child care facility on January xi, 2013, that a parent had reported that an attendee and three siblings were ill with measles. All four siblings were unvaccinated for measles and had no travel history outside of Orange County during the periods when they likely had been exposed. A 5th, possibly associated case was afterwards reported in a Brazilian citizen who had become ill while vacationing in Florida. The outbreak investigation that was conducted at multiple community settings in Orange County, including at an Orlando-area theme park, identified no boosted cases. The genotype sequence was identical for cases 2–5, and visits to the same theme park suggested an unknown, common exposure and link between the cases. Sources of measles exposure can be difficult to place for every measles instance. Measles should be considered in the differential diagnosis of febrile rash illness, especially in unvaccinated persons. Reporting a confirmed or suspected case immediately to public health regime is critical to limit the spread of measles.

Measles cases in the United States are evaluated by land and local health departments using standard example definitions and classifications (1). For this investigation, the CDC definition of exposure menstruum as seven–21 days before rash onset and the American Academy of Pediatrics 2009 Carmine Volume definition for infectious menstruation every bit 2 days before symptom onset through iv days afterwards rash onset were used (one,2).

Case i

An Orangish County unvaccinated resident aged 10 years developed a fever (maximum temperature 104.5°F [twoscore.three°C]) on December 25, 2012. Rash onset was on December 28. Additional symptoms included cough, coryza, and conjunctivitis. The patient was evaluated at a local pediatric urgent care dispensary on December 29 and given a presumptive diagnosis of viral rash of unknown etiology. Activities during the exposure period of patient 1 included a family trip to an Orlando-area theme park on December xv and schoolhouse attendance through December 21. No travel history or sick contacts were reported. During the patient's infectious period, omnipresence at a church on December 24 and 25, a visit to a health care facility on December 27 (unrelated to affliction), and the visit to the pediatric urgent care clinic on December 29 occurred. Patient ane did not nourish school during her infectious period considering of winter interruption. No clinical specimens were collected from patient 1.

Cases 2, 3, and 4

Patient 2 (aged 7 years), patient 3 (anile 13 years), and patient 4 (anile 4 years) are all siblings of patient i, and their illnesses were secondary cases in this outbreak. All four children in the family were unvaccinated; the parents had claimed a religious exemption to vaccination. Prodromal fever (≥101°F [≥38.3°C]) onset occurred on January six, 2013, for patients 2 and iii, with patient 4 having onset of prodromal fever the next day. Rash onset in patients 2, three, and 4 occurred on January 10, 11, and 12, respectively. Additional symptoms reported in all 3 cases included diarrhea, cough, coryza, and conjunctivitis. After onset of disease in all four of their children, the parents independently suspected measles infection and reported this to the children's child care facility and schoolhouse. Patients two and iii did non attend school during their infectious periods. Activities during the infectious catamenia included participation on a sports squad by patient ii during Jan 4 and five and attendance at child care past patient 4 on January vii, the date of fever onset.

Public Health Laboratory Analysis

Nasopharyngeal specimens were collected from patients 2, 3, and 4, a urine specimen from patient 3, and a claret specimen from patient two on January 11 past staff from DOH-Orangish and tested at the Florida Department of Health (DOH), Bureau of Public Health Laboratories. On Mon, January xiv, the laboratory reported that the blood specimen was positive for measles-specific immunoglobulin One thousand and all nasopharyngeal and urine specimens were positive for measles virus RNA by opposite transcription polymerase chain reaction. Testing at CDC confirmed identical sequences of measles genotype D8 for all 3 cases.

Possibly Associated Case 5

On January 25, 2013, the Florida Department of Health in Miami-Dade County (DOH-Miami-Dade) was notified past CDC of a report from Brazil of a confirmed measles case in a Brazilian denizen who had visited Florida during his exposure and infectious periods. Patient 5, aged 20 years, sought medical care for same-twenty-four hour period onset of rash and a four-day history of fever, oral lesions, and conjunctival hyperemia at a Miami urgent care facility on Dec 30, 2012. With a belch diagnosis of acute pharyngitis, patient v returned to Brazil on December 31, where he tested serum-positive for measles immunoglobulin K and positive for measles virus RNA from nasopharyngeal and urine specimens; genotype D8 was detected. Public wellness officials in Brazil reported to CDC that this patient had no documented history of measles vaccination and had also visited Orlando-surface area theme parks in Orange County during the December 14–21 timeframe; the theme parks were non identified. The genomic sequence from the patient in Brazil was identical to the sequences obtained from patients 2–iv in the United States, suggesting an epidemiologic linkage between these cases (Figure). A total of four secondary cases linked to patient five were identified in Brazil, and all had genotype D8 detected.

Public Wellness Response

On January eleven, 2013, for patients 2–4, guidance was provided to the parents to isolate the children at home during the balance of their infectious periods. Before laboratory confirmation was received, deportment were taken to ensure a rapid response to the outbreak, including briefing public information officers, querying the DOH electronic syndromic surveillance system for additional cases, and updating the health intendance provider alarm alphabetic character, media press release, and measles exposure notification letters to contacts of the patients.

On Jan 14, afterward laboratory confirmation, a health alert was distributed to health care providers, including hospital and urgent care facilities in Orange County, Florida. In add-on, contact investigations were initiated at identified community settings where there was a potential for disease transmission. Measles exposure notification letters were distributed to contacts in the identified settings, recommending isolation of persons with onset of symptoms clinically compatible with measles (with immediate notification of DOH-Orange), review of personnel vaccination condition, and full vaccination. Additionally, the pediatric urgent care clinic and the urgent care clinic in Miami were encouraged to review its diagnostic and infection control policies for patients with rash and febrile illness. Because the exposure source for patient i was unknown, contact investigation was too initiated at the public school attended during the patient's exposure flow. School health logs were reviewed for all school days in December 2012 for compatible infection; however, none was identified. No exclusions were applied at whatsoever public schoolhouse because patients i–3 did not attend while infectious and no clinically uniform cases were identified during the investigation. 3 unvaccinated kid intendance contacts of patient four were excluded from child care omnipresence and voluntarily isolated through Jan 28, 2013. In total, measles exposure notification messages were sent to 528 students, 50 school faculty and staff, 24 sports team contacts, 15 pediatric urgent care contacts, six health care facility contacts, and 67 child care contacts. The notification letters were besides distributed to an unknown number of church parishioners during the January 19 weekend services. No boosted cases were identified.

Upon notification of a potential theme park link, contact was initiated with the Orlando-area theme park where the suspected exposure of patient i, and mayhap patient 5, occurred to ascertain if there were any theme park guest complaints or reports of rash affliction from the beginning of December 2012 through January 2013. No rash disease had been reported amongst theme park guests or staff.

DOH-Miami-Dade followed up on potential disease manual from patient five at the urgent care facility in Miami. The facility identified xiv patients and 3 staff members who were potentially exposed to the measles virus. All identified persons reported bear witness of amnesty to measles and had no compatible illnesses.

Discussion

Measles is an acute, highly infectious, viral illness spread via large respiratory aerosol and aerosolized droplet nuclei. In the The states, interruption of year-round endemic transmission of measles was documented in 2000 (3). This occurred as a event of high population immunity, attained through vaccination, and rapid public health response to cases. Nonetheless, infants aged <12 months and unvaccinated children and adults remain at take a chance for acquiring and transmitting measles. Despite a high number of potential exposures in school, kid care, and health care settings, no manual occurred, highlighting that high population immunity tin can limit measles transmission and maintain measles elimination in the United States.

Measles is currently endemic in much of the globe, including Europe, where genotype D8 is circulating, which provides an ongoing source of imported cases to the The states (4–8). Despite a detailed investigation, no source of exposure was found for patients 1 and v, who became febrile on December 25 and 26, respectively, and their presence at a theme park with domestic and international attendees was suggestive of a common exposure at this location. Large besiege settings might be an important potential source of measles exposure in the United states. This outbreak also highlights the importance of molecular epidemiology. The identical D8 sequences from patients 2–five was suggestive of an epidemiologic linkage or common source of exposure, although two carve up importations from areas where this lineage is circulating cannot be excluded as an explanation.

The misdiagnosis of patients one and v is a reminder that many health care providers are no longer familiar with the clinical presentation of measles and they need to maintain a high index of suspicion when a clinically compatible febrile rash disease occurs in an unvaccinated person. High vaccination coverage in the entire population and rapid, robust public health response to cases, which includes physicians immediately reporting suspected cases to public health agencies, appropriate isolation and specimen drove for both viral detection and genotyping likewise as serologic testing, and thorough contact investigations, are necessary elements in the attempt to maintain measles emptying in the Usa.

Acknowledgments

Sarah D. Matthews, MPH, Karen Coombs, Lori Theisen, Dain Weister, Mirna Chamorro, Florida Section of Wellness in Orange County. Henry Uribarri, Okechukwu Aniagoh, Florida Department of Health in Miami-Dade County. Scott Pritchard, MPH, Cristina Dusek, Robert Bernstein, Doctor, Sharon M. Watkins, PhD, Carina Blackmore, DVM, PhD, Division of Disease Control and Wellness Protection, Florida Section of Wellness. Valerie Mock, Pamela Colarusso, MSH, Agency of Public Health Laboratories, Florida Department of Health. Marilda Siqueira, PhD, Fabiano Marques Rosa, Jose Ricard Pio Marins, Claudio Maierovitch Pessanha Henriques, Jarbas Barbosa da Silva Jr., Brazil Ministry of Public Health. Paul Rota, PhD, Emmaculate Lebo, Jane Seward, MBBS, Measles, Mumps, Rubella, and Herpesvirus Laboratory Branch, Division of Viral Diseases, National Center for Immunization and Respiratory Diseases, CDC.

1Florida Department of Health in Orangish Canton; 2Florida Department of Wellness in Miami-Dade Canton (Respective author: Tania A. Slade, tania.slade@flhealth.gov, 407-665-3266)

References

1. CDC. Manual for the surveillance of vaccine-preventable diseases. Atlanta, GA: Us Section of Wellness and Human Services, CDC; 2013. Available at http://www.cdc.gov/vaccines/pubs/surv-transmission/chpt07-measles.html.
2. American University of Pediatrics. Pickering LK, ed. Red book: 2009 report of the committee of infectious diseases. 28th ed. Elk Grove Village, IL: American Academy of Pediatrics; 2009:444–55. Available at http://redbookarchive.aappublications.org/cgi/content/full/2009/i/3.77.
3. Katz SL, Hinman AR. Summary and conclusions: measles elimination meeting, 16–17 March 2000. J Infect Dis 2004;189(Suppl one):S43–seven
4. Parker Fiebelkorn A, Redd SB, Gallagher K, et al. Measles in the The states during the postelimination era. J Infect Dis 2010;202:1520–8.
5. Sugerman DE, Barskey AE, Delea MG, et al. Measles outbreak in a highly vaccinated population, San Diego, 2008: role of the intentionally undervaccinated. Pediatrics 2010;125:747–55.
6. Chen Th, Kutty P, Lowe LE, et al. Measles outbreak associated with an international youth sporting event in the U.s.a., 2007. Pediatr Infect Dis J 2010;29:794–800.
7. Chen SY, Anderson Southward, Kutty PK, et al. Wellness care-associated measles outbreak in the United States after an importation: challenges and economic impact. J Infect Dis 2011;203:1517–25.
8. CDC. Notes from the field: measles outbreak—Indiana, June–July 2011. MMWR 2011;60:1169.

What is already known on this topic?

High population immunity to measles, which has been accomplished through vaccination, combined with rapid public health responses to cases, have resulted in the elimination of endemic measles in the United states of america since 2000. Failure to vaccinate is ane of the virtually frequent preventable causes of measles outbreaks amongst U.South. children. Unvaccinated persons continue to exist at risk for measles infection.

What is added by this report?

Four children in a Florida family were diagnosed with measles in January 2013. None of the iv were vaccinated against measles, and none had traveled outside of Orange Canton, Florida, during the periods when they likely had been exposed. A fifth case of measles was subsequently reported in a Brazilian citizen who had go ill while vacationing in Florida at the same time as the first Florida patient. The genotype was determined for three of the siblings and the Brazilian case; all were identical. The investigation detected no additional cases and suggested that visits to the same theme park might take resulted in an unknown, common exposure.

What are the implications for public health practice?

Sources of measles exposure tin be hard to identify for measles cases. Destinations popular amongst domestic and international visitors might serve as important sources of exposure. Children should exist vaccinated confronting measles routinely. Clinicians should be educated on the recognition and diagnosis of measles and should consider measles diagnoses in persons with no or unknown vaccination history and compatible symptoms. Rapid identification is critical to constructive public health response.

Effigy. Exposure and infectious periods of five measles cases — Orange Canton, Florida, December 2012–January 2013

Abbreviations: F = fever onset; R = rash onset.

* Known travel to a theme park in Orange Canton, Florida.

† Known travel to Orangish County, Florida, including visits to unknown theme parks.

§ Per CDC's Transmission for the Surveillance of Vaccine-Preventable Diseases. Atlanta, GA: U.s.a. Department of Wellness and Human Services, CDC; 2013. Information bachelor at http://www.cdc.gov/vaccines/pubs/surv-manual/chpt07-measles.html.

¶ Per American Academy of Pediatrics' Red Volume (Pickering LK, ed. Scarlet volume: 2009 report of the committee of infectious diseases. 28th edition. Elk Grove Village, IL: American Academy of Pediatrics; 2009:444–55). Information available at http://redbookarchive.aappublications.org/cgi/content/full/2009/1/3.77.

Alternate Text: The figure above shows exposure and infectious periods of five measles cases in Orangish Canton, Florida, during December 2012-Jan 2013. The genomic sequence from the patient in Brazil was identical to the sequences obtained from patients 2-iv in the United states, suggesting an epide-miologic linkage betwixt these cases.

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