ここで留意しなければいけないことは、ウイルスが繁殖するスピードが速いという点である。
Sentence Analyzer
English Translation
        Something else to be borne in mind here is the rapidity with which the virus can reproduce.
    
Furigana
        ここで留意 しなければいけないことは、ウイルスが繁殖 するスピードが速 いという点 である。
    
Romanji
        Koko de ryūishinakerebaikenai koto wa, uirusu ga hanshokusuru supi-do ga hayai toiu ten de aru.
    
Words
            
                此処
            
            
                (ここ)
            
        
        
            here (place physically close to the speaker, place pointed by the speaker while explaining); this place; these last (followed by a duration noun and a past sentence: time period before the present time of the speaker); these next ... (followed by a duration noun and a non past sentence: time period after the present time of the speaker); the next ...
        
    
            
                で
            
            
                (で、にて)
            
        
        
            indicates location of action; at; in; indicates time of action; indicates means of action; cause of effect; by; and then; so; indicates continuing action; indicates certainty, emphasis, etc.
        
    
            
                留意
            
            
                (りゅうい)
            
        
        
            heeding; paying attention; bearing in mind
        
    
            
                事
            
            
                (こと、こん)
            
        
        
            thing; matter; incident; occurrence; event; something serious; trouble; crisis; circumstances; situation; state of affairs; work; business; affair; after an inflectable word, creates a noun phrase indicating something the speaker does not feel close to; nominalizing suffix; pretending to ...; playing make-believe ...; alias; aka; nickname; alternative name; also known as
        
    
            
                は
            
            
                (は)
            
        
        
            topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis
        
    
            
                ウイルス
            
            
                (ウイルス、ウィルス、ビールス、バイラス、ヴィールス、ヴァイラス)
            
        
        
            virus; viral
        
    
            
                が
            
            
                (が)
            
        
        
            indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and
        
    
            
                繁殖
            
            
                (はんしょく)
            
        
        
            breed; multiply; increase; propagation
        
    
            
                スピード
            
            
                (スピード)
            
        
        
            speed
        
    
            
                早い
            
            
                (はやい)
            
        
        
            fast; quick; hasty; brisk; early (in the day, etc.); premature; (too) soon; not yet; (too) early; easy; simple; quick
        
    
            
                と言う
            
            
                (という、とゆう)
            
        
        
            called; named; as many as; as much as; all X; every X
        
    
            
                点
            
            
                (てん)
            
        
        
            spot; mark; point; dot; mark (e.g. in exam); score; points; comma; aspect; matter; respect; counter for goods, items, articles of clothing, works of art, etc.
        
    
            
                だ
            
            
                (だ)
            
        
        
            be; is; indicates past or completed action; indicates light imperative
        
    
            
                或
            
            
                (ある)
            
        
        
            a certain ...; some ...
        
    Kanji
Readings: リュウ、 ル、 と.める、 と.まる、 とど.める、 とど.まる、 るうぶる
                        Meanings: detain, fasten, halt, stop
                    Reading: イ
                        Meanings: idea, mind, heart, taste, thought, desire, care, liking
                    Readings: ハン、 しげ.る、 しげ.く
                        Meanings: luxuriant, thick, overgrown, frequency, complexity, trouble
                    Readings: ショク、 ふ.える、 ふ.やす
                        Meanings: augment, increase, multiply, raise
                    Readings: ソク、 はや.い、 はや-、 はや.める、 すみ.やか
                        Meanings: quick, fast
                    Readings: テン、 つ.ける、 つ.く、 た.てる、 さ.す、 とぼ.す、 とも.す、 ぼち
                        Meanings: spot, point, mark, speck, decimal point