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December 2025 is set to be a highly exciting month for Pokémon GO! The new season, "Precious Paths," will begin, featuring the debut of the Paldean Pokémon Gimmighoul. Furthermore, the powerful Legendary Pokémon Kyurem, Reshiram, and Zekrom will appear sequentially in Legendary Raids.The month is packed with events, including the traditional two-day "December Community Day" at the end of the year, the Winter Holiday event, and the New Year's event. This article summarizes the periods for Raid Battles, Weekly Events, and major events scheduled for December, based on the provided sources.

While it is widely known that the "adult incubation period is mostly asymptomatic" during flu season, the reality is that the incubation period for "children (especially elementary school age and younger)" is completely different from that of adults.

When the flu is spreading at work or school, many people worry, "Am I in the incubation period?" However, that worry may be entirely misplaced. The influenza incubation period is "completely asymptomatic" to a degree you might not imagine. The moment you feel symptoms like a slight fever, fatigue, or a scratchy throat, the incubation period is actually over, and the highly contagious "onset" of the disease has begun.This article thoroughly explains the critical difference between the incubation period and the onset of illness, including the actual prevalence of symptoms and tips for telling them apart. Understand the correct action you should take and protect yourself from the trap of the "zero-symptom period," which is the greatest source of infection.Influenza Incubation Period Symptoms "Complete Summary Table"

When we think of influenza prevention, we usually imagine wearing a mask or staying home after a fever starts. However, the period of highest infectivity is actually different from what most people imagine.Surprisingly, the peak time for influenza virus transmission to others is the day before the fever starts, when the person feels absolutely no symptoms. This means that a decision to "rest because I have a fever" is often made too late, and you have likely already spread the virus to those around you.

When a family member (often a child) is suddenly diagnosed with influenza, spiking a 40∘C fever, we rush to enforce masks and handwashing. Unfortunately, those preventive actions may be "too little, too late."The most terrifying reality of influenza is that the virus has already been spread to every family member during the asymptomatic incubation period, which is just 1 to 3 days before the onset of symptoms. In households, where the secondary infection rate reaches 20–40%, the truth is, "If one person gets it, the rest are just a matter of time." In the worst-case scenario, the family follows the "Total Annihilation Route," with everyone falling ill within a week of the initial onset.

When you hear the word "influenza" in the winter, most people probably imagine high fever and severe body aches. However, there are three main types of influenza—Type A, Type B, and Type C—and they differ completely in the severity of symptoms, frequency of outbreaks, and the level of vigilance we should maintain.Which type causes the "Novel Influenza" that makes the news every year? Is it true that "Type B is better than Type A"? And what exactly are the symptoms of "Type C," which is barely known to exist?

"How many days after meeting that person will I develop a fever?"—When you suspect potential exposure to the source of an influenza infection, the length of the incubation period is what everyone is most concerned about. Knowing this period is crucial for taking preventive measures to avoid spreading the infection to others.

Every winter, we brace for the flu. Is it Type A this year? Or Type B? In fact, these two types have significant differences that you should know, ranging from the length of the incubation period to the onset of symptoms and even the risk of severe illness.While the perception that "Type A is severe and sudden" and "Type B is milder" is partially correct, Type B should not be underestimated, especially in households with small children. This article thoroughly compares Type A (H1N1, H3N2) and Type B from four perspectives: "Incubation Period Difference," "Symptom Onset," "Severity in Children," and "Timing of Outbreaks."

"I'll wear a mask if I get a fever," "I'll rest if I feel sluggish"—we tend to think this way about influenza. However, are you aware that this very perception is a major cause of infection spread?Alarmingly, influenza begins spreading the virus to others during the completely asymptomatic incubation period.Even more frightening is the data indicating that the period immediately preceding the onset of symptoms is when infectivity is at its highest.