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Colombia's Yellow Fever Outbreak Threatens Urban Centers

In COVID-19, Latest News by Precision Vaccinations

The ongoing outbreak of Yellow Fever in the Republic of Colombia has been progressively expanding in South America, particularly in regions such as the Amazon basin, the Magdalena River, and departments like Meta.
Furthermore, Yellow Fever (YF) outbreaks have been reported in areas where the disease had not historically occurred, including the municipality of Neira in Caldas, which is situated in the coffee-growing region.

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Texas or Ontario, Which Controls Measles Better

In COVID-19, Latest News by Precision Vaccinations

When the northern hemisphere experienced unexpected measles outbreaks in 2025, two areas separated by 2,400 miles reported similar challenges but contrasting vaccination rates.
While Canada's Alberta, New Brunswick, Quebec, and Manitoba provinces have reported a limited number of measles cases this year, Ontario has become the overwhelming leader.
As of April 14, 2025, Ontario had reported 816 measles cases (678 confirmed, 138 probable) since mid-October 2024.

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Where Do Chikungunya, Dengue, Yellow Fever, Zika Outbreaks Overlap

In COVID-19, Latest News by Precision Vaccinations

Many disease incidence maps offer limited real-time value for international travelers planning trips. Quantifying health risks at the local level is increasingly important to reduce the number of travel-related diseases during the summer of 2025.
Researchers are concerned that surveillance biases hamper existing disease maps and may misrepresent the actual distribution of disease outbreaks.

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Children Need More Than One Yellow Fever Vaccination

In COVID-19, Latest News by Precision Vaccinations

In 2013, the World Health Organization (WHO) withdrew its recommendation for the yellow fever (YF) vaccine booster doses. However, new research supports the Brazilian National Immunization Program's recommendation for a booster dose of the vaccine at four years of age.
This vaccination policy change is vital for the Federative Republic of Brazil as it combats the spread of this severe mosquito-transmitted virus. 

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Children May Need More Than One Yellow Fever Vaccination

In COVID-19, Latest News by Precision Vaccinations

In 2013, the World Health Organization (WHO) withdrew its recommendation for the yellow fever (YF) vaccine booster doses. However, new research supports the Brazilian National Immunization Program's recommendation for a booster dose of the vaccine at four years of age.
This vaccination policy change is vital for the Federative Republic of Brazil as it combats the spread of this severe mosquito-transmitted virus. 

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An Expert Opinion On Second-Generation Dengue Vaccine

In COVID-19, Latest News by Precision Vaccinations

In 2024, approximately 13 million dengue cases were reported, marking the highest year on record. Now classified as a grade 3 emergency, this mosquito-transmitted disease could cause additional outbreaks, endangering 4 billion people worldwide.
Therefore, access to innovative vaccines has become an essential public health priority in 2025.